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2021 Dec JK0-019 vce
Q161. After testing a new 100BaseTX cable, the technician determines that only pairs 4, 5, 7, and 8 are straight-thru wires. Which of the following MOST likely describes this cable type?
A. Crossover cable with open pairs
B. Crossover cable
C. Rollover cable
D. Straight-thru cable with open pairs
Answer: B
Q162. Which of the following network access methods is the MOST secure?
A. PPPoE
B. SIP
C. RSH
D. IPSec
Answer: D
Q163. A technician needs to ensure that a specific application on a single home user's computer receives Internet traffic reliably. The home network provides access to three other users and the application relies on a specific protocol. Which of the following should the technician use?
A. DHCP
B. PAT
C. Proxy
D. IPX
Answer: B
Q164. A user plugged a cable between two network jacks that attach to the same switch and caused a broadcast storm. Which of the following would have prevented the broadcast storm?
A. Spanning tree
B. VLAN tagging
C. 802.1x
D. Port mirroring
Answer: A
Q165. Which of the following wireless technologies can operate at only 5GHz?
A. 802.11b/g
B. 802.11g
C. 802.11b
D. 802.11a
Answer: D
Replace JK0-019 latest exam:
Q166. Which of the following technologies would Sandy, a technician, use to connect networks at large distances without the use of physical medium?
A. Satellite
B. ISDN
C. OC3
D. OC12
Answer: A
Q167. Joe, a user, accidentally unplugs a cable from the patch panel and plugs it into the switch stack. Now, all users are unable to access any network resources. Which of the following is the MOST likely cause?
A. EMI
B. Mismatched MTUs
C. Looping
D. Faulty module
Answer: C
Q168. Joe, a user, is unable to reach websites, but is able to ping several Internet IPv4 addresses. Which of the following is the MOST likely problem?
A. Incorrect subnet mask
B. Incorrect DNS
C. Missing default gateway
D. Incorrect IPv6 address
Answer: B
Q169. Which of the following cable types would have the LEAST amount of EMI?
A. CAT3
B. CAT5
C. STPCAT6
D. Plenum CAT6
Answer: C
Q170. Which of the following tools allows Kurt, an administrator, to test connectivity between two computers?
A. route
B. ping
C. ipconfig
D. tfconfig
Answer: B