Test Questions Chapter 5 Flashcards
user reports that she can’t connect to a server on her network. Ed wants to identify the scope of the problem, so he tries to reproduce the problem on the user’s computer. The problem still remains. No other users are reporting this problem. What is the next logical step that Ed should perform to identify the affected area?
A. Verify that the local router is forwarding traffic
B. Try performing the same task on a computer attached to the same segment
C. Verify that the server is configured properly
D. Verify that the switch the client is connected to is functioning
B
You have a problem with a server or other network component that prevents many users from working. What type of problem is this?
A. Network wide problem
B> System wide
C. shared resource problem
C
A user reports that she’s unable to connect to the internet. which of the following steps is the techy least likely to perform first?
A. Check the config of the router
B. ask user if they can access resources on local network
C. check the user’s job title to see if she’s an important person
A. There are many more likely problems
when you troubleshoot a network, its possible to introduce another problem while attempting to fix the original one. In which step of the troubleshooting process should you be aware of the residual effects that changes might have on the network?
A. identify the problem
B. Test the theory of probably cause
C. Verify full system functionality
d. establish a plan of action to resolve the problem
D.
key word here is ‘aware’. You need to be aware of it when you’re coming up with the fix.
Which of the following protocols does ping never use to carry messages?
A. Ethernet
B. UDP
C. TCP
C.
Which command can display the routing table on the local computer?
A. arp - r
B. netstat -r
B
Which of the following tools might you use to connect internal twisted pair cable runs to the keystone connectors that snap into wall plates? (choose all that apply)
A. a crimper
B. punchdown tool
C. A pigtail slicer
B and C
Which command displays ARP entries stores in memory?
a. arp -c
b. arp -a
B
Which troubleshooting tool can test cabling for: length attenuation near end cross talk (NEXT) equal far level crosstalk (ELFEXT) propagation delay delay skew return loss
Is it:
A. TDR
B. Cable certifier
B
Which ping parameter enables you to specify the time to live?
-i
What tool to engineers use to connect a cable end to a keystone connector?
punchdown tool
crimpers are used to attach rj45 connectors to length of BULK cable, true or false?
TRUE
tcpdump, dig, ifconfig and iptables are all commands used only on linux/unix systems, true or false?
TRUE
ping -n allows you to do what?
specific the number of messages the ping tool should transmit
Which of the following are true about cable certifiers (choose all that apply)
a. they eliminate the need for tools like tone generators
b. are the most expensive testing solution
c. must be reconfigured whenever a new cable specification is standardized
d. can only certify copper base cables
A
B
C
Which of the following netstat commands can tell you how many ipv6 packets have been received on a windows workstation?
a. netstat -a
b. netstat -s
c. netstat -e
B
pinging the loopback address 127.0.0.1 verifies the NIC is functioning, true or false?
False. It only verifies the TCP/IP software stack is working.
connection state
active connections
routing table interface statics
are all the main categories of information that netstat can display, true or false?
False - connection state (only according the the test questions! The justification was that “the connection state of the computer”, which isn’t what the question asked. Netstat DOES display a column called STATE.
Which tester can detect split pairs?
Cable certifier
If there is a mixture of T568A and T568B wiring between the switch and the wall-plate, and you connect a patch cable from the patch panel to the switch, it won’t matter if you don’t reconcile the mixture of wiring leading back to the wall-plate because the switch will automatically flip the pins electronically the right way around. - true or false?
True
Which of the following should a troubleshooter look for when a duplex mismatch is suspected? A. collisions B. Runt Frames C. CRC errors D. Failed ping tests
A.
B.
C.
what out of the following will cause drastic decrease in speed? (Choose all that apply)
a. bottleneck
b. speed mismatch
c. duplex mismatch
d. tx/rx reversal
A. C.
the other two cause a complete failure.
list the pin out of T568A
white/green green white/orange blue white/blue orange white/brown brown
What type of antenna would you use when you have an office situated by an outside wall and need to prevent outsiders connecting but also maintaining good coverage within?
Patch antenna (has a half-spherical coverage pattern)
