CompTIA CompTIA Certifications JK0-023 Questions & Answers

• Question 761:

  1000BaseT has a MAXIMUM run distance of:

  A. 25 meters (82 feet).

  B. 100 meters (328 feet).

  C. 500 meters (1640 feet).

  D. 1000 meters (3280 feet).

  Correct Answer: B

• Question 762:

  Which of the following siies is the fxed cell length in ATM?

  A. 8 bytes

  B. 53 bytes

  C. 64 kilobytes

  D. 128 kilobytes

  Correct Answer: B

• Question 763:

  Which of the following BEST describes the point at which an ISPns responsibility for an Internet connecton ends?

  A. Router

  B. MDF

  C. IDF

  D. Demarc

  Correct Answer: D

• Question 764:

  Kimf an administratorf is atemptng to connect a laptop to a server via RJ-45 ports on both a device and a CAT5 patch cable. All of the IP setngs have been verifed to be correctf yet there is a connectvity problem. Which of the following would MOST likely fx the IP connectvity problem?

  A. Wires 1f 2 and 3f 6 need to be swapped on one end of the connectng cable.

  B. Use the DB-9 port with a DB-9 to RJ-45 adapter on the server.

  C. Manually adjust the duplex mode on the serverns link.

  D. Confgure the laptop to receive a DHCP address from the serverf rather than manually setng one.

  Correct Answer: A

• Question 765:

  Kimf a technicianf is asked to run new cabling for an ofce that is 350 feet (107 meters) away from the networking equipment. The type of cable being run is CAT6. Kim purchases and installs a 500 foot (152 meters) CAT6 cablef but afer installatonf notces a weak signal between the ofce and the networking equipment. Which of the following would have been the BEST to install instead of the CAT6 cable?

  A. Install two CAT6 cables with a repeater.

  B. Install a 500 foot (152 meter) CAT5 cable.

  C. Install a 500 foot (152 meter) CAT5e cable.

  D. Install three CAT6 cables with a repeater.

  Correct Answer: A

• Question 766:

  T568B wiring scheme is typically found on which of the following components?

  A. Demarc extension

  B. 66 block

  C. Patch panel

  D. Vertcal cross connect

  Correct Answer: C

• Question 767:

  In which of the following wireless standards is MIMO used?

  A. 802.11a

  B. 802.11b

  C. 802.11g

  D. 802.11n

  Correct Answer: D

• Question 768:

  Zachf a network administratorf is checking work on some new CAT5 LAN network cabling installed at an organiiaton. Multple lines are receiving poor signalsf and Zach fnds the lengths of the runs to be sometmes over 350 feet (107 meters). Which of the following is the cause of the issue?

  A. CAT5 cable runs over 330 feet (100 meters) need to utliie STP instead of UTP.

  B. CAT5 cabling is limited to single-run lines of 330 feet (100 meters).

  C. CAT5 cabling is limited to single-run lines of 250 feet (76 meters).

  D. CAT5 cabling needs to have terminators installed at each end for runs over 330 feet (100 meters).

  Correct Answer: B

• Question 769:

  Jeff an administratorf is using a punch-down tool to connect a cable. To which of the following is Jef MOST likely connectng?

  A. A 110 block

  B. A demarc

  C. A DB-9

  D. A smart jack

  Correct Answer: A

• Question 770:

  Which of the following uses copper wiring?

  A. 10GBaseER

  B. 10GBaseLW

  C. 100BaseFX

  D. 1000BaseT

  Correct Answer: D