[Free] 2018(June) Dumps4cert CompTIA JK0-023 Dumps with VCE and PDF Download 321-330

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CompTIA Network certification

Question No: 321 – (Topic 3)

Which of the following BEST describes the point at which an ISP’s responsibility for an Internet connection ends?

  1. Router

  2. MDF

  3. IDF

  4. Demarc

Answer: D

Question No: 322 – (Topic 3)

Which of the following technologies allows more than two transceivers with an access point?

  1. MIMO

  2. FIFO

C. 802.1x


Answer: A

Question No: 323 – (Topic 3)

After Karen, a new user, moves furniture into a cubicle, the computer does not connect to the network any longer. Which of the following would be the MOST likely reason? (Select TWO).

  1. Bad Ethernet switch port

  2. TX/RX reversed

  3. Bad connectors

  4. Bad patch cable

  5. Mismatched MTU

Answer: C,D

Topic 4, Network Management

Question No: 324 – (Topic 4)

Which of the following is used to ensure traffic flows efficiently on multiple T-1 circuits?

  1. DNS server

  2. Content filter

  3. Proxy server

  4. Load balancer

Answer: D

Question No: 325 – (Topic 4)

Which of the following commands can a network technician use to check whether the DNS server for a given domain is reachable?

  1. nmap

  2. nbtstat

  3. dig

  4. arp

Answer: C

Question No: 326 – (Topic 4)

Which of the following devices will allow Lisa, a user, to see a cached copy of websites?

  1. Content switch

  2. DNS server

  3. Proxy server

  4. Load balancer

Answer: C

Question No: 327 – (Topic 4)

Users report that an internal web server is not responding. Which of the following commands could be used on the server to confirm that the web service is running?

  1. nbtstat

  2. traceroute

  3. nslookup

  4. netstat

Answer: D

Question No: 328 – (Topic 4)

A network administrator wants to see what ports are open on a server. Which of the following commands will show open ports?

  1. netstat

  2. tracert

  3. nbtstat

  4. nslookup

Answer: A

Question No: 329 – (Topic 4)

An administrator is attempting to troubleshoot a program that is unable to resolve IP addresses from FQDNs. Which of the following commands is used to check reverse DNS settings?

  1. dig

  2. ifconfig

  3. nbtstat

  4. route

Answer: A

Question No: 330 – (Topic 4)

A technician is unable to easily trace physical connections within a network rack. Which of the following practices would save time in the future?

  1. Change management

  2. Cable management

  3. Asset management

  4. Setting baselines

Answer: B

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