Networking Midterm

141 Questions  I  By Kdrost on March 9, 2011
This is my quiz :) It's all the quiz questions up to date

  

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1.  This device can never run full duplex
A.
B.
C.
2.  A ground loop is:
A.
B.
C.
D.
E.
3.  A network administrator uses a straight-through cable connecting Host A (IP address 192.168.1.20 Mask 255.255.255.240) and Host B (IP address 192.168.1.201 Mask 255.255.240) directly through their Ethernet interfaces. Ping attempts between Host A and Host B are unsuccessful. What 2 things can be done to provide connectivity between the hosts?
A.
B.
C.
D.
E.
4.  Which of the following protocols uses both TCP and UDP?
A.
B.
C.
D.
5.  Of the following, which is the highest layer in the OSI model?
A.
B.
C.
6.  Which is a valid Class B address?
A.
B.
C.
7.  What does VPN stand for?
A.
B.
C.
8.  Which of the following is a valid Class A address?
A.
B.
C.
D.
9.  Which of the following can achieve 200Mbps running full duplex on CAT5e cable?
A.
B.
C.
D.
10.  This identifies the end host the message is for
A.
B.
C.
11.  Fibre-optic cable is immune to electromagnetic interference (EMI) and radio frequency interference (RFI) because it:
A.
B.
C.
D.
12.  Which layer of the OSI model is responsible for code and character-set conversion as well as recognizing data formats?
A.
B.
C.
13.  Which of the following is a Class C network address?
A.
B.
C.
D.
14.  What type of connector does UTP cable typically use?
A.
B.
C.
D.
15.  With PAT (Port Address Translation), why does the PAT gateway also replace the TCP/UDP source port number?
16.  Logical addressing is used at this layer:
A.
B.
C.
17.  What two statements about IPv6 addresses are true? Choose 2
A.
B.
C.
D.
18.  The _______ layer of the OSI model combines bits into bytes and bytes into frames and uses MAC addresses
19.  Two hubs, connected to a switch:
A.
B.
C.
D.
20.  Coax cable can be used when going full duplex to a switch, but only for its full 185M length
A.
B.
21.  Which type of cable will you use to connect switches together?
22.  This device creates many smaller collision domains, but the network is still one large broadcast domain
A.
B.
C.
D.
23.  You enter the command "ping www.conestogac.on.ca" into a command prompt and get the response "Ping request could not find host rr.conestogac.on.ca.". However, if you ping the server's IP address, you get a reply. What is likely the problem?
A.
B.
C.
D.
E.
24.  The _______ layer of the OSI model specifies voltage, wire speed, and connector pin-outs, and moves bits between devices
25.  The _______ layer in the OSI model manages the transmission of data across a physical link and is primarily concerned with physical or MAC addressing and the integrity of frames
26.  Which of the following addresses is not allowed on the Internet? Choose 2 answers
A.
B.
C.
D.
27.  Which of the following is true when describing a unicast address?
A.
B.
C.
D.
28.  Which of the following is true when describing a multicast address?
A.
B.
C.
D.
29.  What is the valid range of values that may appear in an IPv4 octet? Give your answer in decimal as well as binary
30.  Which of the following is a valid IP address that can be used on the Internet (meaning the public addressing scheme)?
A.
B.
C.
D.
31.  The _______ layer of the OSI model is responsible for converting data packets from the Data Link layer into electrical signals
32.  What is the purpose of flow control?
A.
B.
C.
33.  When a host gets its IP address and subnet mask, it derrives the default gateway's IP address by determining what is the first valid host address in the same subnet
A.
B.
34.  What advantage does the client/server architecture have over peer-to-peer
A.
B.
C.
D.
35.  Multi-mode fibre-optic cable has poorer EMI resistance than STP CAT6e
A.
B.
36.  In a class C IP address, how long is a network address?
A.
B.
C.
D.
37.  On a network, which mask should you use on a point-to-point WAN links in order to reduce the waste of IP addresses
A.
B.
C.
D.
E.
38.  What is the main difference between single mode fibre (SMF) and multimode fibre (MMF)
A.
B.
C.
D.
39.  A 64MB data stream is divided into smaller segments for transmission at which layer of the OSI model?
A.
B.
C.
40.  What is the effective total throughput increase with a full-duplex connection?
A.
B.
C.
D.
41.  UTP cable is rated in the following categories EXCEPT:
A.
B.
C.
D.
42.  Which of the following is a Layer 2 broadcast?
A.
B.
C.
D.
43.  Acknowledgment, sequencing and flow control are the characteristics of which OSI layer?
A.
B.
C.
44.  You receive a call from a user that is complaining that they cannot get on the Internet. You have them verify their IP address, mask, and default gateway. The IP address is 104.0.37.144 with a subnet mask of 255.255.254.0. The default gateway is 104.0.38.1. What is the problem?
A.
B.
C.
D.
45.  Which device by default does NOT forward any broadcast or multicast packets
A.
B.
C.
D.
46.  Which of the following can achieve 200Mbps running full duplex on CAT5e cable?
A.
B.
C.
D.
47.  You need to crimp on a connector using the RJ-45 connector. Which pin-out configuration would you use to connect a host into a switch?
A.
B.
C.
D.
48.  A cross-over cable is used to connect all the following EXCEPT:
A.
B.
C.
D.
49.  How many bits are in a MAC address?
A.
B.
C.
D.
50.  What is a logical grouping of network users and resources connected to logically isolated ports on a switch?
A.
B.
C.
51.  What is the decimal number 10 in hexadecimal
A.
B.
C.
D.
52.  What does the Base mean in 100Base-TX?
A.
B.
C.
53.  An advantage of a star topology using a hub instead of a bus topology is...
A.
B.
C.
D.
54.  What does the IP Properties selection "Optain an IP address Automatically" indicate?
A.
B.
C.
D.
E.
55.  Which of the following describes a broadcast address?
A.
B.
C.
D.
56.  What type of cable transmits lights from end to end?
A.
B.
C.
57.  What device can you NOT use full-duplex communication with?
A.
B.
C.
D.
58.  You need a network that provides centralized authentication of users. Which of the following concepts should you use?
A.
B.
C.
59.  If you are forced to replace a router that has failed to the point that you are unable to access its current configuration to aid in setting up interface addresses on the new router, which of the folowing can you reference for assistance?
A.
B.
C.
D.
60.  If you can ping by IP address but not by hostname or URL, which of the following is related to the problem?
A.
B.
C.
D.
E.
61.  In order for a router to handle a request, it must be sent to the routers MAC address, not its IP address
A.
B.
62.  You want to connect a host to a switch port. What type of Ethernet cable would you use?
63.  A recieving host has consistently failed to receive all the segments that it should acknowledge in an agreed transmission set. What can it do to improve the reliability of the communication sessions?
A.
B.
C.
64.  Which device does not aid in network segmentation?
A.
B.
C.
D.
65.  What is the subnetwork address for a host with the IP address 200.10.5.68/28
A.
B.
C.
D.
66.  Write the subnet address for 192.168.100.99/25
67.  What does a NAT (or stateful inspection) firewall mainly look at to decide whether to allow a packet in or to block it?
68.  Two advantages of fibre optic cabling include: It is completely immune to EMI and RFI and can transmit up to 40 km (25 miles)Harder to evesdrop or wire-tap
A.
B.
69.  When connecting a hub to a switch, the hub can go full duplex to the switch, but only half duplex to hosts connected to the switch
A.
B.
70.  What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
A.
B.
C.
D.
71.  How many valid host addresses are in each subnet of 192.168.100.99/25
72.  What protocol helps devices share the bandwidth evenly without having two devices transmit at the same time on the network medium?
A.
B.
C.
D.
73.  Which pairs of wires are using for 10baseT and 100baseT communication? Choose all that apply
A.
B.
C.
D.
E.
F.
G.
74.  Which of the following is an example of a LAN
A.
B.
C.
75.  Routers perform routing at which OSI level?
A.
B.
C.
76.  Which of the following are fibre optic connectors? Choose 3
A.
B.
C.
D.
E.
F.
77.  What is the decimal value for the binary number 11101000
A.
B.
C.
D.
78.  Say your network is using C5e UTP. If you need to go through a busy factory area, you could run fibre-optic cable, with transceivers at both ends to convert back to RJ 45 and electrical signals
A.
B.
79.  When using a hub, the maximum distance from workstation to server is 100M, if using UTP
A.
B.
80.  You are transmitting a file to a server on the Internet and receive a time-out message. What layer could be the cause of this message?
A.
B.
C.
81.  When connecting a plug to UTP cable, why should you ensure the outside casing is clamped in the plug? Strain relief or minimizing the length of untwisted wires
A.
B.
82.  The maxium distance of 1000Base-T is?
A.
B.
C.
D.
83.  The ______ layer in the OSI model is responsible for creating, managing and terminating sessions between applications.
84.  Your host is sending a message with 80 as the destination port address. What service are you trying to access on the destination host?
A.
B.
C.
D.
E.
85.  What type of cable does EMI have the least effect on?
A.
B.
C.
D.
86.  What is the decimal equivalent of this binary number:11000000.10101000.00110000.11110000
A.
B.
C.
87.  Which statement regarding private IP addresses is most accurate?
A.
B.
C.
88.  At which layer of the OSI model would you find IP?
A.
B.
C.
89.  Which type of cable should be used to connect to the console port on a router?
A.
B.
C.
90.  This device breaks up collision domains and broadcast domains
A.
B.
C.
91.  What is an advantage of using DHCP in a network environment?
A.
B.
C.
D.
92.  On what type of network are all computers considered equals and do not share any central authority
A.
B.
C.
93.  On which of the following devices are you most likely to be able to implement NAT?
A.
B.
C.
D.
94.  The ______ layer in the OSI model defines how data is formatted, presented, encoded and converted
95.  In a switched network, if you need more connections at any point in the network, just add a switch to an existing line.
A.
B.
96.  Which of the following provides the longest cable run distance?
A.
B.
C.
D.
97.  On an ethernet switched network, what address does one host computer use to communicate with another?
A.
B.
C.
98.  How many wire pairs are used in 100Base-T full duplex?
A.
B.
C.
D.
99.  What is the highest usable address on the 127.16.1.0/24 network?
A.
B.
C.
100.  What is the valid host range for 192.168.100.99/25
101.  How is the decimal value 10 represented in binary?
A.
B.
C.
D.
102.  What effect will an inappropriate DHCP server have on hosts using static IP addresses?
103.  You want to connect remotely to the office network in a secure manner. Which of the following should you use?
A.
B.
C.
104.  Write the broadcast address for 192.168.100.99/25
105.  At which layer of the OSI model do bridges, hubs and routers primarily operate, respectively?
A.
B.
C.
106.  You have a class A host of 10.0.0.110/25. It needs to communicate to a host with an IP address of 10.0.0.210/25. Which of the following devices do you need to use in order for these hosts to communicate?
A.
B.
C.
D.
107.  Users arrive at the office after a weekend and the hosts that were shut down over the weekend are restarted but can't access the LAN or the internet. Hosts that were not shut down are working fine. Where can the problem be?
A.
B.
C.
D.
108.  What gives IPv6 the ability to reference more hosts than IPv4?