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2021 Feb JK0-019 exam question
Q191. Kurt, a technician, wants to prevent users from visiting social networking sites. Which of the following should be configured on the firewall to BEST achieve this?
A. PAT
B. Content filter
C. Implicit deny
D. NAT
Answer: B
Q192. Which of the following protocols allow the set up, teardown and streaming of VoIP traffic? (Select TWO)
A. NTP
B. VNC
C. RTP
D. SIP
E. TLS
Answer: CD
Q193. A user reports that their laptop does not have network connectivity, but was working fine last week. The technician executes IPCONFIG to see what the IP address is but it comes up with a 169.254.254.1 address. This address is not part of the company's subnet. Which of the following MOST likely identifies this address type?
A. Multicast
B. DHCP
C. APIPA
D. Broadcast
Answer: C
Q194. Which of the following features would BEST be used to optimize real-time voice and video chat? (Select TWO)
A. Load balancing
B. Caching engines
C. Qos
D. Fault tolerance systems
E. Traffic shaping
Answer: CE
Q195. Which of the following OSI layers performs error detection using a Frame Check Sequence?
A. Session
B. Transport
C. Physical
D. Data link
Answer: D
Update JK0-019 practice exam:
Q196. Karen, an administrator, finds a phone line but does not know where the line goes or if it is active. Which of the following can be used to test if it is active?
A. Butt set
B. Punch down tool
C. Cable tester
D. Cable stripper
Answer: A
Q197. Which of the following connector types is MOST commonly found with coaxial cabling?
A. DB-9
B. BNC
C. RJ-45
D. RJ-11
Answer: B
Q198. Which of the following utilities would Karen, a technician, use to resolve the FQDN of a web server to its IP address?
A. netstat
B. route
C. nslookup
D. arp
Answer: C
Q199. Which of the following is the broadcast address for a network defined as 192.168.0.0/24?
A. 192.168.0.255
B. 192.168.0.1
C. 192.168.0.0
D. 192.168.0.253
Answer: A
Q200. Switch A is configured with VLAN 105 and 106. Switch Bis configured with VLAN 105 and 107. Both switches are connected with a fiber cable. In order for packets from all VLANs to cross the fiber cable, which of the following configurations MUST be present?
A. Reverse ARP
B. Full duplex on the fiber link
C. PoE
D. 802.1q trunking
Answer: D