[Free] 2018(June) Dumps4cert CompTIA JK0-023 Dumps with VCE and PDF Download 81-90

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CompTIA Network certification

Question No: 81 – (Topic 1)

Which of the following protocols would Kurt, a technician, use to synchronize local date and time of a client workstation to that of a server?

  1. RTP

  2. NTP

  3. TFTP

  4. ARP

Answer: B

Question No: 82 – (Topic 1)

Which of the following protocols resolves IP addresses to MAC addresses?

  1. DNS

  2. ARP

  3. RARP

  4. NTP

Answer: B

Question No: 83 – (Topic 1)

A firewall that operates at Layer 7 of the OSI model is known as a(n):

  1. Circuit gateway.

  2. Packet filter.

  3. Application level.

  4. Redundant firewall.

Answer: C

Question No: 84 – (Topic 1)

The address 6FFE:FFFF:0000:2F3B:04AC:00FF:FEBE:5C4A is an example of which of the following?

  1. APIPA

  2. MAC

  3. IPv4

  4. IPv6

Answer: D

Question No: 85 – (Topic 1)

Which of the following OSI layers BEST describes where an HTTP proxy operates?

  1. Transport

  2. Application

  3. Presentation

  4. Session

Answer: B

Question No: 86 – (Topic 1)

Kurt, a user, cannot access any network resources. The technician has determined that the problem is isolated to Kurt, and that there have not been any changes to his workstation or switch port recently. Which of the following steps in the troubleshooting methodology should the technician do NEXT?

  1. Establish a plan of action to resolve the problem.

  2. Implement preventative measures.

  3. Implement the solution or escalate as necessary.

  4. Establish a theory of probable cause.

Answer: D

Question No: 87 – (Topic 1)

Which of the following protocols would Lisa, a technician, use to disable switch ports automatically to prevent switching loops?

  1. RIP

  2. OSPF

  3. STP

  4. EGP

Answer: C

Question No: 88 – (Topic 1)

In which of the following layers of the OSI model does the TCP protocol operate?

  1. Session

  2. Network

  3. Data link

  4. Transport

Answer: D

Question No: 89 – (Topic 1)

Which of the following operates at OSI layer 2 to forward traffic based on the MAC address?

  1. Switch

  2. Proxy Server

  3. Router

  4. VPN Concentrator

Answer: A

Question No: 90 – (Topic 1)

Which of the following exterior routing protocols uses an algorithm to determine the quickest route to a destination?

  1. RIP

  2. OSPF

  3. BGP

  4. RIPv2

Answer: C

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