Exam Review Flashcards
A client was connected to a network of 1 Gbps with an ethernet cable. After a few hours, the client noticed the performance peaked only at 100 Mbps. Which of the following may be the cause?
a. ) The client is connected
b. ) The client via CAT-5 cable
c. ) The ethernet lacks the RJ-45 Connector
d. ) The router is off
b.)
The maximum input of a Cat-5 cable is at 100 mbps and is at Layer 1 - Physical
Connecting computers to a network enables them to communicate with each other. What is the main reason that computers can “understand” the transmitted information?
a. ) They use HTTP protocol for communication
b. ) They follow the OSI communication model
c. ) They send and receive traffic on the same port
d. ) They use the same communication protocols
d.)
A network administrator identified that in a switch network the computers received many corrupt packets. The administrator identified that the switch was configured with a cut-through switching method. What caused the forwarding of corrupt packets?
a. ) The switch didn’t examine the frame check sequence
b. ) It buffered the first 64 bytes without any error checking
c. ) The switch was not set to auto-regeneration mode
d. ) The switch’s IOS wasn’t updated to the latest version
a.)
cut-through will be your frame check
An employee was annoyed by his slow computer at the office. He decided to connect his new laptop to the network via the ethernet cable. When he connected, he noticed that he didn’t receive any network communication. What may have been the cause?
a. ) Port security was configured on the switch
b. ) the switch identified an invalid IP address from the computer
c. ) The switch was under a CAM table overflow attack
d. ) The switch entered error disabled mode
a.)
A user noticed that she couldn’t browse to websites. She checked the computer’s IP address and found that its IP was 169.254.10.13. She called IT and asked them to solve the problem. What should the IT employee check first?
a.) Make sure the IPv6 address is configured on the computer
b.) Make sure the DHCP server is operating properly
c.) Make sure the DNS server is operating properly
d,) Nothing, the IP address can be used like any other IP address
b.)
The network administrator asks you to subnet the address 172.16.0.0/16 to support 300 hosts in the network. Which of the following subnets is the most suitable?
a. ) 172.16.0.0/24
b. ) 172.16.0.0/23
c. ) 172.16.0.0/26
d. ) 172.16.0.0/20
b.)
/24 is 256
/23 is 512
if network counts increase /# then possible hosts decrease
The network administrator configured four IPv4 static routes on a router, with the first being 10.0.0.0/8[1/0]. By examining their AD values, which of the following static routes will be used if the first route fails?
a. ) 10.0.0.0/8 [1/0]
b. ) 192.168.0.1/24 [10/0]
c. ) 172.16.0.1/16 [25/0]
d. ) 192.168.5.1 [30/0]
b.) has the shortest route
The TopFix company has a network that uses 17 routers, An employee hears about the RIPv2 protocol and suggests that IT implement it. Why would the IT department reject the idea?
a. ) Because RIPv2 doesn’t support the CIDR used on the network
b. ) Because RIPv2 doesn’t support more than 16 hops
c. ) Because the static routing is easier to implement on the network
d. ) Because RIPv2 works only on switched networks
b.)
