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Free and Premium Huawei H12-821_V1.0 Dumps Questions Answers

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Total 299 questions

HCIP-Datacom-Core Technology V1.0 Questions and Answers

Question 1

A switch running a later IGMP version can identify Report messages of an earlier IGMP version, but the switch running an earlier IGMP version cannot identify Report messages of a later IGMP version. To ensure that IGMP runs properly, you are advised to set the IGMP version on the switch to be the same as or later than the IGMP version of member hosts.

Options:

A.

TRUE

B.

FALSE

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Question 2

ASPF enables the firewall to support multi-channel protocols such as FTP and to define security policies for complex applications.

Options:

A.

TRUE

B.

FALSE

Question 3

On the OSPF network shown in the figure, an adjacency has been established between R1 and R2. An engineer configures the commands in the figure on R2. In this case, which of the following routing entries may exist in the routing table of R2?

Options:

A.

10.1.4.0/24

B.

10.1.3.0/24

C.

10.1.2.0/24

D.

10.1.1.0/24

Question 4

The filter-policy 2000 export command is run in an ISIS process. Which of the following statements about the functions of a filter policy is false?

Options:

A.

Is used together with the route import function to advertise some imported external routes to neighbors.

B.

If this command is not run, the device by default advertises all routes that ISIS Imports form external routing protocols.

C.

Controls the advertisement of routes generated by the device.

D.

Filters LSPs to be advertised.

Question 5

An edge port is a new port role added to RSTP to overcome the disadvantages of STP. Which of the following statements is false about this port role?

Options:

A.

The port does not participate in RSTP calculation.

B.

The port can directly enter the Forwarding state from the Discarding state.

C.

After receiving a configuration BPDU, the port is still in the Forwarding state.

D.

The Up and Down states of the port do not cause network topology changes.

Question 6

The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.

Options:

A.

TRUE

B.

FALSE

Question 7

Which of the following statements about multicast packet forwarding is true?

Options:

A.

If a multicast data packet fails the RPF check, the packet must have been received through a sub-optimal interface. However, this interface still receives and forwards the multicast traffic downstream.

B.

IGMP snooping cannot control the scope of multicast traffic flooding on a Layer 2 network.

C.

The source address of a multicast packet is a unicast address.

D.

In multicast transmission, the destination address of a packet can be the unicast address of a host.

Question 8

When creating a single-hop BFD session for the first time, bind the single-hop BFD session to the peer IP address and the local address. To modify a configured BFD session, delete it and create a new one.

Options:

A.

TRUE

B.

FALSE

Question 9

Which of the following statements regarding the summary automatic command and BGP route summarization is false?

Options:

A.

After this command is configured, BGP sends only the summarized routes to peers

B.

This command is used to implement automatic summarization. Automatic summarization takes precedence over manual summarization

C.

This command enables automatic summarization for the locally imported routes

D.

After this command is configured, BGP summarizes routes based on natural network segments

Question 10

The Internet Assigned Numbers Authority (IANA) allocates Class D addresses to IPv4 multicast. An IPv4 address is 32 bits long, and the four most significant bits of a Class D address are 1110.

Options:

A.

TRUE

B.

FALSE

Question 11

The BFD Echo function checks the connectivity of the forwarding link by looping back packets. Which of the following statements are true about this function?

Options:

A.

If URPF is enabled on the peer end, BFD packets may be incorrectly discarded on the peer end.

B.

In the BFD Echo function, the device uses the IP address of the outbound interface as the source IP address by default.

C.

The BFD Echo function applies only to single-hop BFD sessions.

D.

When configuring a BFD session supporting the BFD echo function, you need to configure both the local and remote discriminators.

Question 12

Which of the following statements are true about the packet filtering firewall?

Options:

A.

The packet filtering firewall can analyze associated packets to improve security.

B.

The packet filtering firewall supports per-packet detection.

C.

The packet filtering firewall can check application-layer data.

D.

The packet filtering firewall filters data packets based on ACLs.

Question 13

Which of the following attributes must be carried when BGP sends route update messages?

Options:

A.

MED

B.

Next_Hop

C.

AS_Path

D.

Local_Preference

Question 14

The Neighbor Discovery Protocol (NDP) is an important basic protocol in the IPv6 protocol suite and plays an important role. Which of the following functions and features does it support?

Options:

A.

Address resolution

B.

Neighbor state tracing

C.

Duplicate address detection

D.

Redirection

Question 15

When deploying BFD, you need to adjust some parameters so that it can better detect the network status. Which of the following statements is false about BFD optimization?

Options:

A.

After a high priority is configured for BFD packets, BFD packets are preferentially forwarded.

B.

To quickly learn about the network status and performance requirements, you can set the interval for sending BFD packets to the minimum value.

C.

On a live network, some devices switch traffic only when a BFD session changes to the Up state. If a routing protocol goes Up later than an interface, no route is available for switching traffic back, leading to traffic loss. To resolve this issue, configure a delay to compensate for the time difference caused when the routing protocol goes Up later than the interface.

D.

If a BFD session flaps, master/backup switchovers are frequently performed on the application associated with the BFD session. To prevent this, set the WTR time of the BFD session.

Question 16

In PIM-DM, which of the following processes are involved in SPT establishment?

Options:

A.

Prune

B.

Graft

C.

Flooding

D.

State-refresh

Question 17

When receiving a packet, a Huawei router matches the packet against ACL rules. The default ACL matching order used by the Huawei router is.

Options:

Question 18

Which of the following statements regarding an IP prefix are true?

Options:

A.

An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.

B.

An IP prefix filter cannot be used to filter data packets.

C.

An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.

D.

An IP prefix filter can be used to filter data packets.

Question 19

After BGP initiates a TCP connection, the ConnectRetry timer is disabled if the TCP connection is successfully established. If the TCP connection fails to be established, the device tries to reestablish the TCP connection when the ConnectRetry timer expires.

Options:

A.

TRUE

B.

FALSE

Question 20

When multiple access channels are set for the same access requirement, the insecure access channels are not used and secure access channels are selected in normal cases. Which of the following are secure access channels?

Options:

A.

HTTPS

B.

Telnet

C.

SNMPv2

D.

SFTP

Question 21

This configuration is part of RTA configuration. Which of the following statements regarding the configuration are true?

[RTA] ospf 100

[RTA-ospf-100]silent-interface GigabitEthernet 1/0/0

Options:

A.

RTA cannot establish a neighbor relationship with the neighbor that this interface is directly connected to.

B.

GigabitEthernet 1/0/0 is prohibited from sending OSPF packets.

C.

Direct routes of GigabitEthernet 1/0/0 can still be advertised.

D.

This interface cannot send Hello packets.

Question 22

iMaster NCE-Campus can be used as an authentication server on a WLAN to authenticate STAs.

Options:

A.

TRUE

B.

FALSE

Question 23

The Interface \P address and VRRP virtual IP address can be the same.

Options:

A.

TRUE

B.

FALSE

Question 24

As shown in the figure, data traffic is forwarded in tunnel mode along the path of STA -> HAP -> HAC -> upper-layer network before roaming. What is the flow direction of data traffic after Layer 3 roaming?

Options:

A.

STA -> FAP -> FAC -> HAC -> HAP -> HAC -> Upper-layer network

B.

STA -> FAP -> FAC -> HAC -> Upper-layer network

C.

STA -> FAP -> FAC -> Upper-layer network

D.

STA -> FAP -> FAC -> HAC -> HAP -> Upper-layer network

Question 25

Which of the following is the default interval at which the DIS on a broadcast IS_IS network sends CSNPs.

Options:

A.

30

B.

3.3

C.

10

D.

40

Question 26

Regarding the route-policy set-cost configuration below, which of the following statements is true?

Options:

A.

The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.

B.

The cost of all routes is set to 200.

C.

All the routes that are not permitted by node 10 will be denied.

D.

The route 11.1.0.0/16 will continue to match node 20 after permitted by node 10, and (he final cost is set to 200.

Question 27

OSPF has five types of packets, which have the same header format. If the Auth Type field in the packet header is 1, which of the following authentication modes is used?

Options:

A.

Non-authentication

B.

MD5 authentication

C.

Plaintext authentication

D.

Hash authentication

Question 28

On an OSPF network, interfaces are classified into four types based on link layer protocols. Which of the following types can interfaces on an IS-IS network be classified into based on physical links?

Options:

A.

P2P

B.

Broadcast

C.

P2MP

D.

NBMA

Question 29

As shown in the following figure, a new AP is deployed In dual link MSB networking (load balancing mode). Which AC will the connect to?

Options:

A.

AC1

B.

Random access

C.

None

D.

AC2

Question 30

On the network shown in the following figure, the management VLAN is VLAN 10, and the AP is configured to obtain an IP address on the network segment 10.1.1.0/24 through DHCP. The AP, AC, and AR function as the DHCP client, DHCP relay agent, and DHCP server, respectively. Which of the following configurations for the DHCP relay agent and DHCP server are correct?

Options:

A.

[AC] dhcp server group AP

[AC-dhcp-server-group-AP] dhcp-server 172.21.1.2

[AC-dhcp-server-group-AP] quit

[AC] interface Vlanif 10

[AC-Vlanif 10] dhcp select relay

[AC-Vlanif 10] dhcp relay server-select AP

[AC-Vlanif 10] quit

B.

[AR] ip pool AP

[AR-ip-pool-AP] network 10.1.1.0 mask 24

[AR-ip-pool-AP] gateway-list 10.1.1.2

[AR-ip-pool-AP] excluded-ip-address 10.1.1.1

[AR-ip-pool-AP] quit

[AR] interface GigabitEthernet 0/0/1

[AR-GigabitEthernetO/O/1] dhcp select global

[AR-GigabitEthernet0/0/l] quit

[AR] ip route-static 10.1.1.0 255.255.255.0 172.21.1.1

C.

[AR] ip pool AP

[AR-ip-pool-AP] network 172.21.1.0 mask 24

[AR-ip-pool-AP] gateway-list 172.21.1.2

[AR-ip-pool-AP] excluded-ip-address 172.21.1.1

[AR-ip-pool-AP] quit

[AR] interface GigabitEthernet 0/0/1

[AR-GigabitEthernetO/0/1] dhcp select global

[AR-GigabitEthernetO/0/1] quit

[AR] ip route-static 10.1.1.0 255.255.255.0 172.21.1.1

D.

[AC] dhcp server group AP

[AC-dhcp-server-group-AP] dhcp-server 10.1.1.2

[AC-dhcp-server-group-AP] quit

[AC] interface Vlanif 10

[AC-Vlanif 10] dhcp select relay

[AC-Vlanif 10] dhcp relay server-select AP

[AC-VlaniflO] quit

Question 31

On an OSPF network, if two routers with the same router ID run in different areas and one of the routers is an ASBR, LSA flapping occurs.

Options:

A.

TRUE

B.

FALSE

Question 32

On an OSPF or IS-IS network, the filter-policy import command can be run on a router to filter out the LSAs forwarded by its neighbors.

Options:

A.

TRUE

B.

FALSE

Question 33

An IP prefix list is a common matching tool used in routing policies. Which of the following cannot be configured as matching conditions in an IP prefix list on a Huawei router?

Options:

A.

Port number

B.

Mask

C.

Action

D.

Index

Question 34

BFD can quickly detect faults in channels at multiple network layers, ensuring high reliability. To which of the following layers does BFD belong?

Options:

A.

Application layer

B.

Data link layer

C.

Physical layer

D.

Network layer

Question 35

An enterprise uses Huawei routers to deploy an IS-IS network for network-wide communication. An engineer wants to change the interface cost to control route selection. By default, which of the following values is the maximum cost that can be configured?

Options:

A.

67

B.

63

C.

64

D.

68

Question 36

In BGP, the Origin attribute is used to identify the origin of a route. Which of the following statements are true about the Origin attribute?

Options:

A.

If a route is imported to BGP by the originator using the network command, the Origin attribute of the BGP route is displayed as i in the BGP routing table.

B.

If a route is learned through EGP, the Origin attribute of this BGP route is displayed as ? in the BGP routing table.

C.

If multiple routes carry the same destination address but different Origin attributes and all other route selection conditions are the same, BGP selects the optimal route according to the Origin attribute in the following order: IGP > EGP > Incomplete.

D.

This attribute is a well-known mandatory attribute.

Question 37

In special scenarios, when advertising routes to an IBGP peer, a BGP device needs to set the next hop to its IP address to prevent blackhole routes. Which of the following commands can be run in this case?

Options:

A.

peer next-hop-local

B.

peer mpls-local-ifnet

C.

peer private-nexthop

D.

peer next-hop-invariable

Question 38

After the administrator of an enterprise deploys a DHCP server, employees complain that their clients cannot obtain IP addresses from the DHCP server. Which of the following may cause this problem?

Options:

A.

Multiple DHCP servers are configured.

B.

STP is enabled on the DHCP server.

C.

The DHCP function is disabled by default, and the administrator forgets to enable the DHCP function.

D.

DHCP clients and the DHCP server are on different network segments, and no DHCP relay agent is configured on the network.

Question 39

Similar to the OSPF DR, the IS-IS DIS needs to be elected on a broadcast network. However, the OSPF DR is preemptive by default, whereas the IS-IS DIS is not preemptive by default.

Options:

A.

TRUE

B.

FALSE

Question 40

In IPv6, interface IDs can be manually configured, automatically generated by the system, or generated based on the IEEE EUI-64 standard.

Options:

A.

TRUE

B.

FALSE

Question 41

In the OSPF protocol, intra-area route calculation involves only Router LSA, Network LSA, and Summary LSA.

Options:

A.

TRUE

B.

FALSE

Question 42

During routine operation and maintenance, an engineer checks the IGMP configuration on RTA. The configuration is as follows:

Interface information of VPN-Instance: public net

GigabitEthernet0/0/1 (192.168.1.1):

IGMP is enabled

Current IGMP version is 2

IGMP state: up

IGMP group policy: none

IGMP limit: -

Value of query interval for IGMP (negotiated): -

Value of query interval for IGMP (configured): 60 s

Value of other querier timeout for IGMP: 0 s

Value of maximum query response time for IGMP: 10 s

Querier for IGMP: 192.168.1.1 (this router)

Given this, which of the following statements is false?

Options:

A.

The IP address of the interface is 192.168.1.1.

B.

The maximum response time to Query messages is 10s.

C.

The interval for sending Group-Specific Query messages is 60s.

D.

The IGMP version is IGMPv2.

Question 43

In BGP, the origin attribute of the routes imported using the import-route command is incomplete.

Options:

A.

TRUE

B.

FALSE

Question 44

Which of the following statements regarding multicast MAC addresses are false?

Options:

A.

One multicast MAC address maps to 32 multicast IP addresses.

B.

One multicast MAC address maps to only one multicast IP address.

C.

The high 24 bits of the multicast MAC address are 0x01005E, the 25th bit is fixed to 1, and the lower 23 bits of the MAC address map to the lower 23 bits of the multicast IP address.

D.

A multicast MAC address identifies receivers of a multicast group on the data link layer.

Question 45

Which of the following statements is false about BFD?

Options:

A.

The asynchronous mode is the primary BFD operating mode.

B.

In asynchronous mode, two systems periodically exchange BFD Control packets at the negotiated interval. If one system does not receive any BFD Control packets from the other within the detection interval, the BFD session is declared down.

C.

The asynchronous mode does not support the echo function.

D.

In demand mode, after a BFD session is set up, the system does not periodically send BFD Control packets.

Question 46

PBR is a mechanism for selecting routes based on user-defined policies. There are two types of PBR: interface-based PBR and local PBR. Which of the following statements is false about these two types of PBR?

Options:

A.

Interface-based PBR takes effect only for forwarded packets.

B.

Local PBR takes effect only for locally originated packets.

C.

Interface-based PBR is configured on an interface and takes effect only for incoming packets on the interface.

D.

Local PBR is configured in the protocol view.

Question 47

A local router runs IS-IS and its command output is shown in the following figure. Which of the following statements is true?

Options:

A.

The circuit level of S4/0/0 is Level-1.

B.

S4/0/0 supports IPv6.

C.

S4/0/0 sends IIH packets at the interval of 30s.

D.

The cost of S4/0/0 is 20.

Question 48

Which of the following statements regarding the OSPF protocol is false?

Options:

A.

Each OSPF router uses only one Router-LSA to describe the local active connection status of an area.

B.

Routing information can be advertised only between backbone and non-backbone areas and cannot be advertised directly between non-backbone areas.

C.

Router-LSA describes four connection types: P2P, TransNet, SubNet, and virtual link.

D.

Link State ID in a Type 3 LSA indicates the router ID of an ABR.

Question 49

An enterprise administrator wants to configure single-hop BFD to implement fast detection of direct links. Which of the following configurations are mandatory?

Options:

A.

Configure the remote discriminator of a BFD session.

B.

Configure the local discriminator of a BFD session.

C.

Configure a multicast IP address for BFD.

D.

Enable BFD globally.

Question 50

In an IPv4 address space, Class D addresses are used for multicast. Among Class D addresses, which of the following is the permanent group address range reserved for routing protocols?

Options:

A.

232.0.0.0 to 232.255.255.255

B.

239.0.0.0 to 239.255.255.255

C.

224.0.0.0 to 224.0.0.255

D.

224.0.1.0 to 231.255.255.255

Question 51

There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.

Options:

Question 52

When an SSH client accesses an SSH server for the first time and the SSH server's public key is not configured on the SSH client, you can enable first-time authentication on the SSH client. This allows the SSH client to access the SSH server and saves the SSH server's public key on the SSH client. In this way, the next time the SSH client accesses the SSH server, the SSH client can use the saved public key to authenticate the SSH server.

Options:

A.

TRUE

B.

FALSE

Question 53

Which of the following PIM protocol packets have unicast destination addresses.

Options:

A.

Register Stop

B.

Bootstrap

C.

Graft

D.

Assert

Question 54

On an OSPF network, LSDBs are used to store LSAs. Common LSAs include router LSAs and network LSAs. Which of the following items is not included in the 3-tuple that is used to uniquely identify an LSA?

Options:

A.

LS Sequence Number

B.

Link State ID

C.

Advertising Router

D.

LSType

Question 55

On a broadcast IS-IS network shown in the following figure, a DIS needs to be elected to create and update pseudonodes. Which of the following routers is elected as the DIS?

Options:

A.

R1

B.

R3

C.

R4

D.

R2

Question 56

Which of the following is used as the destination port for single-hop BFD?

Options:

A.

UDP port 3784

B.

UDP port 4784

C.

TCP port 3784

D.

TCP port 4784

Question 57

During routine maintenance, an enterprise administrator runs a command to check VRRP group information. Which of the following statements is false about the command output?

yaml

CopyEdit

display vrrp verbose

Vlanif100 | Virtual Router 1 State: Master

Virtual IP: 10.1.1.100

Master IP: 10.1.1.2

PriorityRun: 120 PriorityConfig: 120

DR: None BDR: None MTU: 0

Preempt: YES Delay Time: 20s

Remain: --

Track: YES Priority Reduced: 20

Auth Type: MD5

BFD-session State: UP

Options:

A.

Preemption is enabled for the VRRP group.

B.

This VRRP group is an mVRRP group.

C.

Authentication is enabled for the VRRP group.

D.

The ID of the VRRP group is 1.

Question 58

Which of the following parameters are not mandatory during the configuration of a BGP peer?

Options:

A.

password

B.

Peer IP address

C.

as-number

D.

description

Question 59

OSPF has multiple types of routes with varying priorities. Which of the following types of routes has the lowest priority when they have the same prefix?

Options:

A.

Type 1 external route

B.

Inter-area route

C.

Type 2 external route

D.

Intra-area route

Question 60

IP multicast effectively conserves network bandwidth and reduces network load. Therefore, it is widely used in network services, such as IPTV, real-time data transmission, and multimedia conferencing.

Options:

A.

TRUE

B.

FALSE

Question 61

Based on IGMP snooping, IGMP snooping proxy enables a switch to act as a substitute for an upstream Layer 3 device to send IGMP Query messages to downstream hosts, and also to act as a substitute for downstream hosts to send IGMP Report/Leave messages to an upstream device. As such, this function conserves bandwidth between the upstream device and the local device.

Options:

A.

TRUE

B.

FALSE

Question 62

OSPF networks are classified into four types of networks by link layer protocol. Drag the following link layer protocols to the corresponding network types.(Token is reusable)

Options:

Question 63

The Next_Hop attribute in BGP records the next hop of a route. Similar to the next hop in an IGP, the Next_Hop attribute in BGP must be the IP address of a peer interface.

Options:

A.

TRUE

B.

FALSE

Question 64

On an RSTP network, port priorities may be compared during root port or designated port election. Which of the following values is the default priority of a port on a Huawei switch?

Options:

A.

1

B.

128

C.

4096

D.

32768

Question 65

Route attributes are specific descriptions of routes. BGP route attributes can be classified into four types. Which of the following are well-known discretionary attributes?

Options:

A.

Atomic_Aggregate

B.

Local-Preference

C.

Community

D.

MED

Question 66

On an office network of an enterprise, OSPF is enabled on two directly connected routers. During adjacency establishment, the state machine stays in the 2-way state. Which of the following statements are not possible causes?

Options:

A.

Hello time values are different.

B.

Area IDs are different.

C.

Router IDs conflict.

D.

The N-bit and E-bit of Hello packets are the same.

Question 67

A BGP device receives a route carrying an unknown attribute from a peer but does not know whether other devices need the attribute. In this case, the BGP device retains this attribute when advertising the route to other peers. Which of the following attributes is of this type?

Options:

A.

Community

B.

AS.Path

C.

MED

D.

OriginatorID

Question 68

RSTP provides different functions in different scenarios. Which of the following statements Is false?

Options:

A.

After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period

B.

The role of the designated port that is enabled with root protection cannot be changed

C.

If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port and triggers STP calculation

D.

When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does not forward packets. If the port does not receive optimal RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state

Question 69

OSPF supports area authentication and interface authentication. If both authentication modes are configured, Interface authentication takes preference over area authentication.

Options:

A.

TRUE

B.

FALSE

Question 70

In VRRP networking, if VRRP is not configured to track an uplink interface and the uplink interface or link of the master device in a VRRP group fails, no switchover will be triggered. As a result, a traffic blackhole occurs.

Options:

A.

TRUE

B.

FALSE

Question 71

To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non-backbone areas and allows sing routing information only within an area or between the backbone area and a non-backbone area. Therefore, each ABR must be connected to the backbone area.

Options:

A.

TRUE

B.

FALSE

Question 72

Which of the following statements about the forwarding plane of a switch is false?

Options:

A.

Provides high-speed and non-blocking data channels.

B.

Can encapsulate and decapsulate packets.

C.

Can collect packet statistics.

D.

Consists of main control boards and interface boards.

Question 73

The native AC function allows an agile switch to integrate AC capabilities, achieving wired and wireless convergence. The agile switch centrally manages wired and wireless service traffic.

Options:

A.

TRUE

B.

FALSE

Question 74

On an enterprise network, the directly connected interfaces of two OSPF routers are on different network segments and have different masks. To establish an OSPF neighbor relationship between the two interfaces, you can change their network types to which of the following?

Options:

A.

Point-to-point

B.

NBMA

C.

P2MP

D.

Broadcast

Question 75

Which of the following statements is false about the default processing of the next hop address when a BGP device advertises a route?

Options:

A.

When advertising a locally originated route to an IBGP peer, a BGP device sets the next hop address to the IP address of its interface connected to the peer.

B.

When advertising a non-labeled route received from an EBGP peer to an IBGP peer, a BGP device changes the next hop address to the IP address of its interface connected to the IBGP peer.

C.

When advertising a route to an EBGP peer, a BGP device sets the next hop address to the IP address of its interface connected to the peer.

D.

A BGP device does not change the next hop address of a route if the route is received from an IBGP peer and is to be sent to another IBGP peer.

Question 76

Match the following IPv4 multicast protocols with the corresponding functions.

Options:

Question 77

On a WLAN, engineers can use the VLAN pool mechanism to assign access users to different VLANs, which helps reduce the number of broadcast domains and improve network performance. VLAN pools support two VLAN assignment algorithms: even and hash. Drag the advantages and disadvantages to the two algorithms.(Token is reusable)

Options:

Question 78

GRE is a Layer 2 VPN encapsulation technology that encapsulates packets of certain data link layer protocols so that the encapsulated packets can be transmitted over an IP network.

Options:

A.

TRUE

B.

FALSE

Question 79

IGMPV3 not only supports IGMPv1 General Query and IGMPv2 Group-Specific Query, and also IGMPv3 Source/Group-Specific Query.

Options:

A.

TRUE

B.

FALSE

Question 80

Which of the following statements regarding different LSA types is false?

Options:

A.

LS Request packets contain only LS Type, LS ID, and Advertising Router.

B.

LS Ack packets contain complete LSA information.

C.

DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence Number.

D.

LS Update packets contain complete LSA information.

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Total 299 questions