Networking Midterm

141 Questions  I  By Kdrost
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1.  A ground loop is:
A.
B.
C.
D.
E.
2.  Which device by default does NOT forward any broadcast or multicast packets
A.
B.
C.
D.
3.  How is the decimal value 10 represented in binary?
A.
B.
C.
D.
4.  Which of the following is true when describing a unicast address?
A.
B.
C.
D.
5.  What type of cable does EMI have the least effect on?
A.
B.
C.
D.
6.  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.
7.  You want to connect remotely to the office network in a secure manner. Which of the following should you use?
A.
B.
C.
8.  What type of cable transmits lights from end to end?
A.
B.
C.
9.  Which of the following can achieve 200Mbps running full duplex on CAT5e cable?
A.
B.
C.
D.
10.  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.
11.  What does a NAT (or stateful inspection) firewall mainly look at to decide whether to allow a packet in or to block it?
12.  Which of the following is an example of a LAN
A.
B.
C.
13.  This device breaks up collision domains and broadcast domains
A.
B.
C.
14.  What is an advantage of using DHCP in a network environment?
A.
B.
C.
D.
15.  What advantage does the client/server architecture have over peer-to-peer
A.
B.
C.
D.
16.  The __________ layer of the OSI model is used to ensure that every packet of data from the sender is received and acknowledged by the receiver
17.  Which device does not aid in network segmentation?
A.
B.
C.
D.
18.  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.
19.  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.
20.  What type of connector does UTP cable typically use?
A.
B.
C.
D.
21.  What is the 127.0.0.1 address used for?
22.  What device can you NOT use full-duplex communication with?
A.
B.
C.
D.
23.  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.
24.  With PAT (Port Address Translation), why does the PAT gateway also replace the TCP/UDP source port number?
25.  Which of the following protocols uses both TCP and UDP?
A.
B.
C.
D.
26.  What is the purpose of flow control?
A.
B.
C.
27.  Which layer of the OSI model is responsible for code and character-set conversion as well as recognizing data formats?
A.
B.
C.
28.  Which of the following is a Layer 2 broadcast?
A.
B.
C.
D.
29.  How many wire pairs are used in 100Base-T full duplex?
A.
B.
C.
D.
30.  Two hubs, connected to a switch:
A.
B.
C.
D.
31.  In order for a router to handle a request, it must be sent to the routers MAC address, not its IP address
A.
B.
32.  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.
33.  What is the effective total throughput increase with a full-duplex connection?
A.
B.
C.
D.
34.  What is the decimal equivalent of this binary number:11000000.10101000.00110000.11110000
A.
B.
C.
35.  A 64MB data stream is divided into smaller segments for transmission at which layer of the OSI model?
A.
B.
C.
36.  Which of the following are fibre optic connectors? Choose 3
A.
B.
C.
D.
E.
F.
37.  Which of the following allows a server to distinguish among different simultaneous requests from the same host?
A.
B.
C.
D.
38.  A cross-over cable is used to connect all the following EXCEPT:
A.
B.
C.
D.
39.  A host uses the _______ address to decide whether or not to read in a frame from the media (wire) and pass it up. It uses the _____ address to decide if the message is meant for it, and the ______ address to decide which process should get the message.
A.
B.
C.
40.  The ______ layer in the OSI model defines how data is formatted, presented, encoded and converted
41.  What protocol is used to find the hardware address of a local device?
A.
B.
C.
D.
42.  Which of the following mnemonic devices can you use to remember the first letter of the name of each layer of the OSI model in proper order?
A.
B.
C.
43.  Multi-mode fibre-optic cable has poorer EMI resistance than STP CAT6e
A.
B.
44.  Which statement regarding private IP addresses is most accurate?
A.
B.
C.
45.  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.
46.  The ______ layer in the OSI model is responsible for creating, managing and terminating sessions between applications.
47.  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.
48.  What is a logical grouping of network users and resources connected to logically isolated ports on a switch?
A.
B.
C.
49.  Which of the following can achieve 200Mbps running full duplex on CAT5e cable?
A.
B.
C.
D.
50.  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.
51.  If a host on teh network has the address 172.16.45.14/30. What is the address of the subnet this host belongs to?
A.
B.
C.
D.
E.
52.  What is the main difference between single mode fibre (SMF) and multimode fibre (MMF)
A.
B.
C.
D.
53.  What is the valid host range for 192.168.100.99/25
54.  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.
55.  Write the broadcast address for 192.168.100.99/25
56.  What is the name for a 48-bit (6 byte) numerical address physically assigned to a network interface, such as a NIC?
57.  How many wire pairs are needed with half duplex?
A.
B.
C.
D.
58.  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.
59.  Which is a valid Class B address?
A.
B.
C.
60.  When grounding an STP cable, don't try to get the foil shield to contact the plug's metal casing. The grounding wire is for that.
A.
B.
61.  What two statements abotu IPv4 and IPv6 addresses are true? Chose 2
A.
B.
C.
D.
62.  How many valid host addresses are in each subnet of 192.168.100.99/25
63.  A repeater amplifies a signal to allow it to travel further
A.
B.
64.  How many devices in a collision domain have to listen when a single host talk?
A.
B.
C.
D.
65.  This layer supports flow control and sequencing:
A.
B.
C.
66.  What gives IPv6 the ability to reference more hosts than IPv4?
67.  Which type of cable should be used to connect to the console port on a router?
A.
B.
C.
68.  UTP cable is rated in the following categories EXCEPT:
A.
B.
C.
D.
69.  What is the subnetwork address for a host with the IP address 200.10.5.68/28
A.
B.
C.
D.
70.  Which of the following addresses is not allowed on the Internet? Choose 2 answers
A.
B.
C.
D.
71.  What is the difference between a LAN and a WAN?
A.
B.
C.
D.
72.  This device can never run full duplex
A.
B.
C.
73.  Why would a network administrator use plenum rated cable during installation? Choose 2
A.
B.
C.
D.
74.  You need a network that provides centralized authentication of users. Which of the following concepts should you use?
A.
B.
C.
75.  Fibre-optic cable is immune to electromagnetic interference (EMI) and radio frequency interference (RFI) because it:
A.
B.
C.
D.
76.  Coax cable can be used when going full duplex to a switch, but only for its full 185M length
A.
B.
77.  Is it easier to troubleshoot a star topology that uses a hub than a bus topology using coaxial cable?
A.
B.
78.  What is the decimal number 10 in hexadecimal
A.
B.
C.
D.
79.  The maxium distance of 1000Base-T is?
A.
B.
C.
D.
80.  What does the IP Properties selection "Optain an IP address Automatically" indicate?
A.
B.
C.
D.
E.
81.  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.
82.  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.
83.  What does VPN stand for?
A.
B.
C.
84.  Routers perform routing at which OSI level?
A.
B.
C.
85.  Which of the following provides the longest cable run distance?
A.
B.
C.
D.
86.  Which of the following is a Class C network address?
A.
B.
C.
D.
87.  The ________ layer of the OSI model provides addressing that routers use for path determination
88.  How does a bridge or switch 'learn' where hosts are?remembers sender's MAC address on traffic coming in through each port
A.
B.
89.  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.
90.  The _______ layer of the OSI model specifies voltage, wire speed, and connector pin-outs, and moves bits between devices
91.  Which of the following is true when describing a multicast address?
A.
B.
C.
D.
92.  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.
93.  TCP and UDP reside at which layer of the OSI model?
A.
B.
C.
D.
94.  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.
95.  Which TWO of the following are private IP addresses? Choose 2 answers
A.
B.
C.
D.
E.
96.  The _______ layer of the OSI model is responsible for converting data packets from the Data Link layer into electrical signals
97.  You receive a call from a user that is complaining that they cannon 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's the problem?
A.
B.
C.
D.
98.  You have an interface on a router with the IP address of 192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to that router interface?
A.
B.
C.
D.
E.
99.  What effect will an inappropriate DHCP server have on hosts using static IP addresses?
100.  What does the Base mean in 100Base-TX?
A.
B.
C.
101.  Write the subnet address for 192.168.100.99/25
102.  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.
103.  Which of the following is a valid Class A address?
A.
B.
C.
D.
104.  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.
105.  Which pairs of wires are using for 10baseT and 100baseT communication? Choose all that apply
A.
B.
C.
D.
E.
F.
G.
106.  When using a hub, the maximum distance from workstation to server is 100M, if using UTP
A.
B.
107.  Of the following, which is the highest layer in the OSI model?
A.