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2021 Dec JK0-019 exam topics
Q321. Which of the following is the MOST efficient way to troubleshoot network problems?
A. Create an action plan
B. Implement and test a solution
C. Determine if anything has changed
D. Identity a probable cause
Answer: C
Q322. Which of the following basic devices blocks ports and can sometimes filter data?
A. Repeater
B. Hub
C. Firewall
D. Switch
Answer: C
Q323. When the DHCP server is unavailable for a network, how will PCs attempt to configure their NICs?
A. PCs will attempt to use the last address assigned to them.
B. PCs will pull from a static address pool.
C. PCs will use APIPA.
D. PCs will prompt the user for an address.
Answer: C
Q324. A zone transfer occurs over which of the following ports?
A. TCP 53
B. UDP67
C. UDP123
D. TCP 25
Answer: A
Q325. Which of the following technologies facilitates the conversion of internal private IP addressing to external public IP addressing?
A. DHCP
B. TCP/IP
C. NAT
D. SNMP
Answer: C
Refresh JK0-019 exam question:
Q326. Which of the following DNS record types provides the hostname to IP address mapping?
A. A record
B. NS record
C. CNAME record
D. MX record
Answer: A
Q327. Which of the following commands would be used to display the IP address on a UNIX/Linux computer?
A. netstat
B. ipconfig
C. ifconfig
D. dig
Answer: C
Q328. A firewall that examines all the incoming traffic and decides if the traffic is going to be allowed though or dumped is a example of which of the following?
A. Packet sniffing
B. Packet filter
C. Stateful inspection
D. Content filter
Answer: C
Q329. A SONET network typically uses which of the following transmission media?
A. Single-mode fiber
B. Multimode fiber
C. Copper
D. Wireless
Answer: A
Q330. Which of the following commands provides similar information about the current configuration of active local Ethernet adapters? (Select TWO).
A. traceroute
B. ipconfig
C. ifconfig
D. route
E. hostname
Answer: BC