Network+ Chapter 13

Which of the following is most likely the first step in a structured troubleshooting methodology?

A. Create a post-mortem report.
B. Hypothesize the probable cause.
C. Create an action plan.
D. Define the problem

Which of the following comprise a simplified troubleshooting flow? (Choose three.)

A. Problem report
B. Problem diagnosis
C. Problem resolution
D. Problem monitoring

A broken copper strand in a circuit is known as which of the following?

A. Impedance
B. Short
C. Split pair
D. Open

What Ethernet switch feature allows a port to automatically determine which of its leads are used for transmitting data and which of its leads are used for receiving data?

A. MDIX
B. LAPD
C. UTP
D. STP

In the absence of STP, what issues might result from a Layer 2 loop in a network? (Choose two.)

a. A router interface’s MTU decrementing
b. MAC address table corruption
c. Broadcast storms
d. Packet fragmentation

If you successfully ping from host A to host B, what can you conclude about host A?

A. You can only conclude that ICMP traffic can reach host B.
B. Its OSI Layers 1–3 are functional.
C. Its OSI Layers 1–4 are functional.
D. Its OSI Layers 1–7 are functional.

A router that drops a packet exceeding a router interface’s MTU size, when that packet has its “don’t fragment” bit set, is called which of the following?

A. Black-hole router
B. Null hop
C. Zero-point router
D. Route reflector

To what subnet does a host with an IP address of 172.16.155.10/18 belong?

A. 172.16.128.0 /18
B. 172.16.154.0 /18
C. 172.16.96.0 /18
D. 172.16.0.0 /18

Which of the following is a value measuring the power of a wireless signal?

A. RSSI
B. RFI
C. SSID
D. CSMA/CA

Which of the following are common sources of wireless network radio frequency interference (RFI)? (Choose three.)

A. Baby monitors
B. Microwave ovens
C. 900-MHz cordless phones
D. Game consoles