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Download Full Version JK0-023 CompTIA Exam

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Total 1112 questions
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CompTIA Network+ certification Questions and Answers

Question 85

Zach, a network administrator, is responding to a support ticket. The ticket does not have enough information to determine the problem. Which of the following should Zach perform FIRST before responding to the ticket?

Options:

A.

Determine if anything has changed.

B.

Test a theory to determine a cause.

C.

Establish a plan of action to resolve the problem.

D.

Escalate the problem if necessary.

Question 86

Which of the following is an invalid MAC address?

Options:

A.

AA:CE:58:FD:90:08

B.

44:98:3E:F8:33:23

C.

56:AD:BX:89:55:54

D.

94:9E:FE:EE:8C:DF

Question 87

Which of the following protocols is commonly used for VoIP technology?

Options:

A.

Telnet

B.

SMTP

C.

SIP

D.

SNMP

Question 88

At which layer of the OSI model do MAC addresses operate?

Options:

A.

Data Link

B.

Network

C.

Application

D.

Physical

Page: 22 / 30
Total 1112 questions
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