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2021 Dec comptia network+ certification exam (jk0-019):
Q261. Which of the following should be used to ensure that all packets are received by every connected device?
A. Hub
B. Router
C. Switch
D. Firewall
Answer: A
Q262. Which of the following layers of the OSI model maps to the Network Interface layer of the TCP stack? (Select TWO).
A. Physical
B. Session
C. Data Link
D. Network
E. Transport
Answer: AC
Q263. Which of the following tools are BEST used to cut away the outside covering of a CAT5e cable?
A. Stripper
B. Punch down tool
C. Butt set
D. Snips
Answer: A
Q264. Which of the following would be used to connect two IDFs in the same building with the LAN, while
A. RG-6
B. STP
C. CAT3
D. UTP
Answer: B
Q265. Which of the following devices would allow a technician using a packet sniffer to view all the data on a network?
A. GBIC
B. Hub
C. Bridge
D. Modem
Answer: B
Renewal comptia jk0-019 exam:
Q266. Which of the following would Kurt, a network engineer, use to ensure a statically addressed device would receive the same IP address, if it reverted to dynamic addressing?
A. DHCP option 3
B. DHCP exclusion
C. DHCP lease
D. DHCP reservation
Answer: D
Q267. Which of the following tools would a technician use to check functionality of a physical network connection?
A. Butt set
B. Cable tester
C. Protocol analyzer
D. Voltage event recorder
Answer: B
Q268. Which of the following is a reason to block FTP at the corporate firewall?
A. It does not transfer encrypted files.
B. It cannot be tunneled in a VPN.
C. It is a deprecated protocol.
D. It transmits passwords in clear text.
Answer: D
Q269. When configured. MPLS can increase routing redundancy by providing which of the following network topology types?
A. Bus
B. Mesh
C. Multipath
D. Ring
Answer: B
Q270. A user connecting a laptop to a wall jack is prompted for user credentials before being granted access to the network. Which of the following is MOST likely implemented on the switch?
A. MAC filtering
B. PoE
C. IP filtering
D. 802.1X
Answer: D