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JK0-023 Real Exam Questions

CompTIA Network+

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Question 1 Single choice

A corporate ofce recently had a security audit and the IT manager has decided to implement very strict security standards. The following requirements are now in place for each employee logging into the network: Biometric fngerprint scan Complex 12 character password
5 digit pin code authoriiaton
Randomiied security queston prompt upon login

Which of the following security setups does this company employ?

  1. A

    Single factor authentcaton

  2. B

    Three factor authentcaton

  3. C

    Two factor authentcaton

  4. D

    Single sign-on

Show answer and explanation

Correct answer: C

Question 2 Single choice

A crossover cable is MOST commonly associated with which of the following layers of the OSI model?

  1. A

    Session

  2. B

    Applicaton

  3. C

    Network

  4. D

    Physical

Show answer and explanation

Correct answer: D

Question 3 Single choice

Which of the following ports is used by Telnet?

  1. A

    21

  2. B

    23

  3. C

    80

  4. D

    143

Show answer and explanation

Correct answer: B

Question 4 Single choice

Users trying to access a website using HTTPS are being blocked by the frewall.

Which of the following ports needs to be allowed?

  1. A

    80

  2. B

    143

  3. C

    443

  4. D

    3389

Show answer and explanation

Correct answer: C

Question 5 Single choice

Which of the following features can BEST be used to facilitate authoriied remote access to a network?

  1. A

    VPN concentrator

  2. B

    Proxy server

  3. C

    Content flter

  4. D

    Load balancer

Show answer and explanation

Correct answer: A

Question 6 Single choice

Which of the following is a requirement for bridging with 802.11a?

  1. A

    WPA encrypton

  2. B

    Governmental licenses

  3. C

    High gain yagi antennas

  4. D

    Clear line of sight

Show answer and explanation

Correct answer: D

Question 7 Single choice

Which of the following network protocols is used to transport email across the Internet?

  1. A

    NTP

  2. B

    SSH

  3. C

    SMTP

  4. D

    SNMP

Show answer and explanation

Correct answer: C

Question 8 Single choice

A network administrator has just been notfed about the loss of Internet connectvity. Another technician had just performed non-scheduled maintenance and mentoned that some cabling may have been moved.

Which of the following MOST likely caused the loss of Internet connectvity?

  1. A

    Broadcast storm

  2. B

    TX/RX cables reversed

  3. C

    Mismatched MTU

  4. D

    Incorrect routng table

Show answer and explanation

Correct answer: B

Question 9 Single choice

A technician is installing 802.11a wireless access points in an open warehouse 300 feet (91.44 meters) long and 200 feet (60.96 meters) wide.

Which of the following would be the LEAST number of devices needed to provide coverage to the entre building?

  1. A

    1

  2. B

    2

  3. C

    3

  4. D

    4

Show answer and explanation

Correct answer: B

Question 10 Single choice

A server that flters trafc between a WAN and a LAN is which of the following?

  1. A

    Proxy server

  2. B

    RAS server

  3. C

    Default gateway

  4. D

    Email server

Show answer and explanation

Correct answer: A