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2018 Aug CompTIA Official New Released JK0-023
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CompTIA Network certification

Question No: 41 – (Topic 1)

Frame relay occurs at which of the following layers of the OSI model?

1. Layer 1

2. Layer 2

3. Layer 4

4. Layer 6

Answer: B

Question No: 42 – (Topic 1)

Hubs are differentiated from switches in that between the two, only hubs have:

1. A single collision domain.

2. A single broadcast domain.

3. Multiple collision domains.

4. Multiple broadcast domains.

Answer: A

Question No: 43 – (Topic 1)

At which of the following layers of the OSI model does ASCII work?

1. Session

2. Transport

3. Presentation

4. Application

Answer: C

Question No: 44 – (Topic 1)

Which of the following is the definition of a DNS server?

1. Hosts proprietary business applications

2. Translates FQDN’s to IP addresses

3. Provides network IDS/IPS security

4. Assigns IP addresses to network devices

Answer: B

Question No: 45 – (Topic 1)

Which of the following DNS record types provides the hostname to IP address mapping?

1. A record

2. NS record

3. CNAME record

4. MX record

Answer: A

Question No: 46 – (Topic 1)

Which of the following is the MAXIMUM hop count for RIP before the network is considered

converged?

1. 1

2. 5

3. 10

4. 15

Answer: D

Question No: 47 – (Topic 1)

A bridge handles frames at which of the following layers of the OSI model?

1. Network

2. Session

3. Transport

4. Data Link

Answer: D

Question No: 48 – (Topic 1)

Joe, a technician, has identified a problem, established and confirmed a theory, and has attempted to resolve the problem. Joe, however, does not appear to have the rights to make the needed changes. Which of the following should he do NEXT?

1. Re-establish a new theory.

2. Gather more information.

3. Establish a plan of action.

4. Escalate the problem.

Answer: D

Question No: 49 – (Topic 1)

Lisa, a network technician, is attempting to map a FQDN to an internal server at the address of 10.0.0.15 without NAT/PAT. Which of the following is the reason this will ultimately not work?

1. This is a private address which cannot be seen by external users.

2. The address does not have the appropriate subnet mask assigned.

3. This is a public address which can only be seen by internal users.

4. This is a private address which can only be seen by external users.

Answer: A

Question No: 50 – (Topic 1)

Which of the following BEST describes a switch port?

1. Broadcast domain

2. Distance vector

3. Link state

4. Collision domain

Answer: D

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