CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 331:

  Ann, a technician, is installing network cables for an office building. Some of the cables are not showing active on the switch even when moved to different ports. Which of the following is MOST likely the cause?

  A. Port speed mismatch
  B. Faulty F-connectors
  C. Bad wiring
  D. Bad switch
  C. Bad wiring

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  Bad wiring refers to the state when you do not follow a pattern and everything seems messed up and you are not able to figure out the cause.

• Question 332:

  Which of the following network topologies describes a network where each node is connected to every other node?

  A. Bus
  B. Star
  C. Mesh
  D. Ring
  C. Mesh

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  In a true mesh topology every node has a connection to every other node in the network.

• Question 333:

  An administrator has set up a NIPS and connected it to the same switch as the internal firewall interface and the internal router. The device, however, only detects traffic from itself to the firewall or router. Which of the following explains why additional corporate traffic cannot be detected?

  A. The spanning tree protocol is preventing the traffic.
  B. Port Mirroring is set up incorrectly.
  C. The switch needs to be a layer 3 switch.
  D. The traffic is in a classless IP range and not classful IP range.
  B. Port Mirroring is set up incorrectly.

• Question 334:

  Which of the following wireless standards is the only one capable of operating in any of the 802.11 wireless spectrums?

  A. A
  B. B
  C. G
  D. N
  D. N

• Question 335:

  Which of the following would a network administrator use to scan a network for vulnerabilities?

  A. ICMP
  B. NMAP
  C. ACL
  D. TCPDUMP
  B. NMAP

• Question 336:

  Which of the following ports does IMAP use by default?

  A. 110
  B. 123
  C. 143
  D. 443
  C. 143

• Question 337:

  A technician is troubleshooting authentication issues on a server. It turns out the clock on the server was 72 minutes behind. Setting the clock to the correct time fixed the issue. Given the scenario, which of the following authentication methods was being used?

  A. Kerberos
  B. CHAP
  C. TACACS+
  D. RADIUS
  A. Kerberos

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  Kerberos is a distributed authentication service that allows a process (a client) running on behalf of a principal (a user) to prove its identity to a verifier (an application server, or just server) without sending data across the network that might allow an attacker or the verifier to subsequently impersonate the principal. Kerberos optionally provides integrity and confidentiality for data sent between the client and server.

• Question 338:

  Malicious users have used multiple workstations to target a single server with the intent of preventing legitimate users from accessing the server. This server suffered which of the following types of attack?

  A. DDoS
  B. Trojan
  C. Cross-site scripting
  D. Man in the middle
  E. Replay attack
  A. DDoS

• Question 339:

  The components of a NIC function at which of the following layers of the OSI model? (Select TWO).

  A. Layer 1
  B. Layer 2
  C. Layer 3
  D. Layer 4
  E. Layer 5
  A. Layer 1
  B. Layer 2

• Question 340:

  A user's network connection is slow. After testing the cabling, the cable tester shows that only pins 1, 2, 3 and 6 are being used. After accurately terminating both ends, the tester displays the same results. Which of the following is the MOST likely cause?

  A. DB loss on the cable
  B. Interference
  C. Split cable
  D. Distance limitations
  C. Split cable