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Updated: Sep 07, 2025
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Cisco Introduction to Cisco Networking Technologies Sample Questions:
1. Refer to the exhibit. A network technician is troubleshooting a connectivity problem between two routers. The technician has established a console session with RouterA, checked the interface status, and verified that the IP address is correct. However, the technician is unable to telnet to RouterB, which is located offsite, to troubleshoot the problem. Which command can the technician issue on RouterA to verify the IP address of the RouterB serial interface?
A) show cdp neighbors
B) show interfaces serial 0/1
C) show arp
D) show controllers serial
E) show cdp neighbors detail
2. A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is
172.16.45.126/26 and the destination is 172.16.46.191/26. How will the router handle the packet?
A) The destination is a broadcast address, so the router will not forward the packet.
B) The destination is a host on the same subnet, so the router will forward the packet.
C) The destination is a network address, so the router will forward the packet.
D) The destination is a host on another subnet, so the router will not forward the packet.
3. A network associate needs to configure a router by connecting a remote computer to the router through the router auxiliary port. Which two statements describe the hardware required to make the connection to the router? (Choose two.)
A) The auxiliary port must be connected to a modem.
B) The technician needs an Ethernet transceiver.
C) The auxiliary port must be connected to an Ethernet LAN.
D) The technician needs an RJ-45 to DB25 adapter.
4. Refer to the exhibit. What is needed to allow host A to ping host B?
A) a crossover cable connecting the switches
B) a straight-through cable connecting the switches
C) a router connected to the switches with straight-through cables
D) a CSU/DSU connected to the switches with straight-through cables
E) a backbone switch connecting the switches with either fiber optic or straight-through cables
5. An administrator issues the show ip interface s0/0 command and the output displays the line Serial0/0 is up, line protocol is upWhat does "line protocol is up" specifically indicate about the interface?
A) A carrier detect signal has been received from the connected device.
B) Keepalives are being received on the interface.
C) The cable is attached properly.
D) IP is correctly configured on the interface.
E) CDP has discovered the connected device.
Solutions:
| Question # 1 Answer: E | Question # 2 Answer: A | Question # 3 Answer: A,D | Question # 4 Answer: C | Question # 5 Answer: B |
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