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Networking Midterm

141 Questions  I  By Kdrost
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1.  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.
2.  What two statements abotu IPv4 and IPv6 addresses are true? Chose 2
A.
B.
C.
D.
3.  The _______ layer of the OSI model is responsible for converting data packets from the Data Link layer into electrical signals
4.  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.
5.  How many wire pairs are used in 100Base-T full duplex?
A.
B.
C.
D.
6.  In a class C IP address, how long is a network address?
A.
B.
C.
D.
7.  A repeater amplifies a signal to allow it to travel further
A.
B.
8.  What advantage does the client/server architecture have over peer-to-peer
A.
B.
C.
D.
9.  The _______ layer of the OSI model combines bits into bytes and bytes into frames and uses MAC addresses
10.  Which type of cable should be used to connect to the console port on a router?
A.
B.
C.
11.  This identifies the end host the message is for
A.
B.
C.
12.  Which statement regarding private IP addresses is most accurate?
A.
B.
C.
13.  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.
14.  On which of the following devices are you most likely to be able to implement NAT?
A.
B.
C.
D.
15.  What type of cable transmits lights from end to end?
A.
B.
C.
16.  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.
17.  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.
18.  A 64MB data stream is divided into smaller segments for transmission at which layer of the OSI model?
A.
B.
C.
19.  Which of the following is an example of a LAN
A.
B.
C.
20.  Fibre-optic cable is immune to electromagnetic interference (EMI) and radio frequency interference (RFI) because it:
A.
B.
C.
D.
21.  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.
22.  Which of the following protocols uses both TCP and UDP?
A.
B.
C.
D.
23.  Which of the following is a concern in peer-to-peer networks?
A.
B.
C.
24.  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.
25.  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.
26.  What is a logical grouping of network users and resources connected to logically isolated ports on a switch?
A.
B.
C.
27.  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.
28.  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.
29.  Which of the following is true when describing a multicast address?
A.
B.
C.
D.
30.  Which of the following is true when describing a unicast address?
A.
B.
C.
D.
31.  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.
32.  How is the decimal value 10 represented in binary?
A.
B.
C.
D.
33.  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.
34.  What is the difference between a LAN and a WAN?
A.
B.
C.
D.
35.  The ______ layer in the OSI model defines how data is formatted, presented, encoded and converted
36.  What gives IPv6 the ability to reference more hosts than IPv4?
37.  Coax cable can be used when going full duplex to a switch, but only for its full 185M length
A.
B.
38.  What is the highest usable address on the 127.16.1.0/24 network?
A.
B.
C.
39.  With PAT (Port Address Translation), why does the PAT gateway also replace the TCP/UDP source port number?
40.  Which of the following allows a server to distinguish among different simultaneous requests from the same host?
A.
B.
C.
D.
41.  What is the subnetwork address for a host with the IP address 200.10.5.68/28
A.
B.
C.
D.
42.  What is the effective total throughput increase with a full-duplex connection?
A.
B.
C.
D.
43.  What type of cable does EMI have the least effect on?
A.
B.
C.
D.
44.  What is the valid range of values that may appear in an IPv4 octet? Give your answer in decimal as well as binary
45.  Routing is enabled at the ______ layer of the OSI model, enabling connections and path selections between two end systems
46.  What is the 127.0.0.1 address used for?
47.  What does VPN stand for?
A.
B.
C.
48.  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.
49.  Routers perform routing at which OSI level?
A.
B.
C.
50.  Which TWO of the following are private IP addresses? Choose 2 answers
A.
B.
C.
D.
E.
51.  Which of the following describes a broadcast address?
A.
B.
C.
D.
52.  At which layer of the OSI model would you find IP?
A.
B.
C.
53.  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.
54.  What is the decimal equivalent of this binary number:11000000.10101000.00110000.11110000
A.
B.
C.
55.  Which type of cable will you use to connect switches together?
56.  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.
57.  Write the subnet address for 192.168.100.99/25
58.  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
59.  How many valid host addresses are in each subnet of 192.168.100.99/25
60.  What is the main difference between single mode fibre (SMF) and multimode fibre (MMF)
A.
B.
C.
D.
61.  What protocol is used to find the hardware address of a local device?
A.
B.
C.
D.
62.  An advantage of a star topology using a hub instead of a bus topology is...
A.
B.
C.
D.
63.  What is a benefit of a layer 3 switch over a layer 2 switch?
A.
B.
C.
D.
64.  Why would a network administrator use plenum rated cable during installation? Choose 2
A.
B.
C.
D.
65.  This device creates many smaller collision domains, but the network is still one large broadcast domain
A.
B.
C.
D.
66.  This device breaks up collision domains and broadcast domains
A.
B.
C.
67.  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.
68.  Which of the following is a Class C network address?
A.
B.
C.
D.
69.  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.
70.  Is it easier to troubleshoot a star topology that uses a hub than a bus topology using coaxial cable?
A.
B.
71.  What is the purpose of the Frame Check Sequence (FCS) in an Ethernet frame?
A.
B.
C.
D.
72.  What type of connector does UTP cable typically use?
A.
B.
C.
D.
73.  This layer supports flow control and sequencing:
A.
B.
C.
74.  When using a hub, the maximum distance from workstation to server is 100M, if using UTP
A.
B.
75.  Which device does not aid in network segmentation?
A.
B.
C.
D.
76.  This device can never run full duplex
A.
B.
C.
77.  You want to connect a host to a switch port. What type of Ethernet cable would you use?
78.  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.
79.  What effect will an inappropriate DHCP server have on hosts using static IP addresses?
80.  Multi-mode fibre-optic cable has poorer EMI resistance than STP CAT6e
A.
B.
81.  Hardware addresses are defined at this layer:
A.
B.
C.
82.  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.
83.  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.
84.  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.
85.  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.
86.  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.
87.  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.
88.  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.
89.  The maxium distance of 1000Base-T is?
A.
B.
C.
D.
90.  How does a bridge or switch 'learn' where hosts are?remembers sender's MAC address on traffic coming in through each port
A.
B.
91.  Single-mode fibre-optic cable has better EMI resistance that STP CAT6e
A.
B.
92.  What is the valid host range for 192.168.100.99/25
93.  TCP and UDP reside at which layer of the OSI model?
A.
B.
C.
D.
94.  What is the decimal number 10 in hexadecimal
A.
B.
C.
D.
95.  A cross-over cable is used to connect all the following EXCEPT:
A.
B.
C.
D.
96.  The ________ layer of the OSI model provides addressing that routers use for path determination
97.  Which of the following is a valid Class A address?
A.
B.
C.
D.
98.  This identifies the application the message is for
A.
B.
C.
99.  How many wire pairs are needed with half duplex?
A.
B.
C.
D.
100.  What does the IP Properties selection "Optain an IP address Automatically" indicate?
A.
B.
C.
D.
E.
101.  Two hubs, connected to a switch:
A.
B.
C.
D.
102.  In order for a router to handle a request, it must be sent to the routers MAC address, not its IP address
A.
B.
103.  Which device by default does NOT forward any broadcast or multicast packets
A.
B.
C.
D.
104.  Which of the following can achieve 200Mbps running full duplex on CAT5e cable?
A.
B.
C.
D.
105.  Which layer of the OSI model is responsible for code and character-set conversion as well as recognizing data formats?
A.
B.
C.
106.  What is the decimal value for the binary number 11101000
A.
B.
C.
D.
107.  Which of the following is a Layer 2 broadcast?
A.
B.
C.
D.
108.  Which of the following are fibre optic connectors? Choose 3
A.
B.
C.
D.
E.
F.
109.  How many bits are in a MAC address?
A.
B.
C.
D.
110.  A ground loop is:
A.
B.
C.
D.
E.
111.  The ______ layer in the OSI model is responsible for creating, managing and terminating sessions between applications.
112.  Which layer of the OSI model provides the interface or entry point for programs to access the network infrastructure?
A.
B.
C.
113.  Acknowledgment, sequencing and flow control are the characteristics of which OSI layer?
A.
B.
C.
114.  Which of the following can achieve 200Mbps running full duplex on CAT5e cable?
A.
B.
C.
D.
115.  What does the Base mean in 100Base-TX?
A.
B.
C.
116.  What device can you NOT use full-duplex communication with?
A.
B.
C.
D.
117.  You want to connect remotely to the office network in a secure manner. Which of the following should you use?
A.
B.
C.
118.  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
119.  Logical addressing is used at this layer:
A.
B.
C.
120.  Write the broadcast address for 192.168.100.99/25
121.  The _______ layer of the OSI model specifies voltage, wire speed, and connector pin-outs, and moves bits between devices
122.  How many devices in a collision domain have to listen when a single host talk?
A.
B.
C.
D.
123.  At which layer of the OSI model do bridges, hubs and routers primarily operate, respectively?
A.
B.
C.
124.  What is an advantage of using DHCP in a network environment?
A.
B.
C.
D.
125.  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.
126.  You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway and DNS addresses. WHich protocol will you use to accomplish this?
A.
B.
C.
D.
127.  What does a NAT (or stateful inspection) firewall mainly look at to decide whether to allow a packet in or to block it?
128.  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.
129.  Of the following, which is the highest layer in the OSI model?
A.
B.
C.
130.  Which of the following provides the longest cable run distance?
A.
B.
C.
D.
131.  What is the name for a 48-bit (6 byte) numerical address physically assigned to a network interface, such as a NIC?
132.  You need a network that provides centralized authentication of users. Which of the following concepts should you use?
A.
B.
C.
133.  What is the purpose of flow control?
A.
B.
C.
134.  UTP cable is rated in the following categories EXCEPT:
A.
B.
C.
D.
135.  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.
E.
136.  Which of the following addresses is not allowed on the Internet? Choose 2 answers
A.
B.
C.
D.
137.  On an ethernet switched network, what address does one host computer use to communicate with another?
A.
B.
C.
138.  Which pairs of wires are using for 10baseT and 100baseT communication? Choose all that apply
A.
B.
C.
D.
E.
F.
G.
139.  On what type of network are all computers considered equals and do not share any central authority
A.
B.
C.
140.  Which is a valid Class B address?
A.
B.
C.
141.  What two statements about IPv6 addresses are true? Choose 2
A.
B.
C.
D.
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