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JK0-023 Latest Exam (Sep 2017)

[Free] 2017(Sep) EnsurePass Braindumps CompTIA JK0-023 Dumps with VCE and PDF 101-110

September 18, 2017

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2017 Sep CompTIA Official New Released JK0-023
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CompTIA Network certification

Question No: 101 – (Topic 1)

A layer 3 switch can move packets between subnets based on which of the following criteria?

  1. 802.1q tag

  2. Port

  3. Application

  4. IP address

Answer: D

Question No: 102 – (Topic 1)

Which of the following is a reason to use dynamic DNS?

  1. The host IP address is not listed in the firewall.

  2. The host IP address is assigned by DHCP.

  3. Static routes cannot be used on the host network.

  4. A third-party certificate is being used.

Answer: B

Question No: 103 – (Topic 1)

A company has been given a Class C address to be utilized for all devices. The company has several subnets and the largest subnet has 15 hosts. Which of the following represents the MINIMUM CIDR notation of this subnet mask?

A. /26 B. /27 C. /28 D. /29

Answer: B

Question No: 104 – (Topic 1)

Which of the following protocols does DNS utilize on port 53?

  1. TCP

  2. FTP

  3. RTP

  4. ICMP

Answer: A

Question No: 105 – (Topic 1)

Which of the following layers of the OSI model maps to the Network Interface layer of the TCP stack? (Select TWO).

  1. Physical

  2. Session

  3. Data Link

  4. Network

  5. Transport

Answer: A,C

Question No: 106 – (Topic 1)

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?

  1. The spanning tree protocol is preventing the traffic.

  2. Port Mirroring is set up incorrectly.

  3. The switch needs to be a layer 3 switch.

  4. The traffic is in a classless IP range and not classful IP range.

Answer: B

Question No: 107 – (Topic 1)

Which of the following STP states indicates an inactivated port due to a loop?

  1. Disabled

  2. Learning

  3. Blocking

  4. Forwarding

Answer: C

Question No: 108 – (Topic 1)

A company’s database software runs in the cloud. The device hosting the software is an

example of which of the following?

  1. Virtual server

  2. Virtual switch

  3. Virtual desktop

  4. Virtual PBX

Answer: A

Question No: 109 – (Topic 1)

Which of the following ports would have to be allowed through a firewall to allow SNMP traffic to pass on its default port? (Select TWO).

  1. 22

  2. 23 C. 143 D. 161 E. 162 F. 8080

Answer: D,E

Question No: 110 – (Topic 1)

The protocols that use a three way handshake to transfer information can be found within which layer of the OSI model?

  1. Layer 2

  2. Layer 3

  3. Layer 4

  4. Layer 5

Answer: C

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