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Networking Midterm

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