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IT 2600 > Midterm 1 > Flashcards

Midterm 1 Flashcards

1
Q

In which layer of the Internet model would HTTP Protocol be used

A

Application

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2
Q

On which of the following OSI model layers would a MAC address be used?

A

Data Link

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3
Q

The _________ layer is responsible for routing of messages from the sender to the final destination.

A

Network

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4
Q

Which layer of the TCP/IP model controls the segmentation and reassembly of data?

A

Transport layer

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5
Q

The network layer of the Internet model uses the _____________ protocol to route messages though the network.

A

IP

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6
Q

Each layer in a network model only needs to know about itself and ____. (Mark all answers that apply)

A

The layer immediately below it

The layer immediately above it

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7
Q

Which is not a function of the physical layer:
providing the physical connection between sender and receiver.

specifying the type of connection and type of signals, waves or pulses that pass through it.

transmission of bits.

defining the rules by which one and zeroes are transmitted.

providing error-free transmission of data.

A

providing error-free transmission of data.

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8
Q

A network engineer is dispatched to an employee office to troubleshoot an issue with the employee’s laptop. The employee is unable to connect to local and remote resources. The network engineer flips the laptop’s wireless switch on to resolve the issue. At which of the following layers of the OSI model was the issue resolved?

A

Layer 1

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9
Q

The fourth layer of the OSI model is called the __________ layer.

A

transport

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10
Q

The Network Interface Layer of the TCP/IP model corresponds to which of the following layers of the OSI model?

A

Network
Data Link

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11
Q

Ethernet is an example of a network layer protocol

A

False

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12
Q

The application layer in the TCP/IP model is comparable to which of the following layers in the OSI model?

A

Application

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13
Q

Which of the following would be a standard or protocol used at the Data Link layer of the Internet or OSI model?

A

Ethernet

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14
Q

On which of the following layers of the OSI model does IP operate?

A

Network

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15
Q

Which layer of the OSI model is responsible for ensuring flow control so that the destination station does not receive more packets that it can process at any given time?

A

Transport

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16
Q

The MAC address of a network device is used to communicate at which of the following OSI layers?

A

Layer 2

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17
Q

What Windows utility do you use to find the MAC address for a system?

A

ipconfig /all

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18
Q

At which of the following layers of the OSI model does ASCII work?

A

Presentation

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19
Q

Which of the following is not a function of the data link layer?
detecting and correcting any errors that have occurred in the transmission of the message

deciding when to transmit messages over the media

specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through it

controlling the physical layer by determining when to transmit

formatting the message by indicating where messages start and end, and which part is the address

A

specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through i

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20
Q

In which layer of the Internet model would the HTTP standard be used?

A

application

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21
Q

A network administrator set up a network computer lab and discovered connectivity issues. The administrator is able to ping the fiber uplink interface, but none of the new PCs plugged into the switch respond to ICMP requests. Which of the following should the administrator perform FIRST?

A

Check if there are link lights on the ports

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22
Q

Star-bus is an example of a _______________ topology.

A

hybrid

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23
Q

A technician is troubleshooting a PC that is having intermittent connectivity issues. The technician notices that the STP cables pairs are not completely twisted near the connector. Which of the following is the issue?

A

cross-talk

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24
Q

Which of the following is the most secure wired media?

A

fiber optic cable

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25
Signal bandwidth is the difference between the highest and lowest frequencies in a band.
True
26
Which networking devices can use the Spanning Tree Protocol (STP)?
Switches
27
In general, controlled approaches:
work better than contention approaches for large networks that have high usage
28
In a _________ , more than one data bit is changed by the error-causing condition.
burst error
29
Media access control: Group of answer choices is not very important in a multipoint configuration is not very important in a point-to-point with a half duplex configuration is not very important in point-to-point with full duplex configuration does not control when computers transmit is not very important in local area networks
is not very important in point-to-point with full duplex configuration
30
What device directs packets based on MAC addresses?
Switch
31
Which of the following is MOST commonly used with a fiber-optic network backbone?
100BaseFX
32
What is the maximum cable length of 10GBaseT on Cat 6?
55 meters
33
How many pairs of wires do 10BaseT and 100BaseT use?
2 Pairs
34
With 100BaseT, what is the maximum distance between the hub (or switch) and the node?
100 meters
35
What is a big advantage to using fiber-optic cable?
Fiber is not affected by EMI.
36
Which of the following tools would a technician use to determine if a CAT6 patch cable has an open or short?
Cable tester
37
What are patch cables used for?
To connect PCs to outlet boxes. To connect the patch panel to the switch.
38
A(n) _______________ organizes and protects the horizontal cabling in the telecommunications room.
patch panel
39
Which of the following enables you to use multiple NICs in a computer to achieve a much faster network speed?
bonding
40
Which of the following cables should never be used in a structured cabling installation?
coaxial cable
41
With _____________ messaging, each UDP segment makes its own way through the network without the use of sequence numbers or acknowledgements.
connectionless
42
Which of the following is the default subnet mask for a Class B address?
255.255.0.0
43
The IP protocol guarantees delivery
False
44
The latest version of IP is IPv7, which increases the address space from 128 bits to 256 bits. Group of answer choices
False
45
Which protocol does the ping utility use?
ICMP
46
You are designing a subnet mask for the 172.22.0.0 network. You want 200 classroom LANs with up to 25 computer hosts on each subnet. What subnet mask should you use?
255.255.255.224
47
The transport layer process running on the destination computer, reassembles the fragmented application message before passing it up to the application layer
True
48
TCP/IP is a data link protocol that is used on the Internet.
False
49
Which subnet does host 172.30.3.114 255.255.255.0 belong to?
172.30.3.0
50
Is this IP address configuration valid for an internet host? IP: 191.134.251.3 Subnet: 255.255.240.0
True
51
Which of the following is the minimum subnet mask to allow 172.16.1.5 and 172.16.4.3 to be on the same subnet?
/21
52
ICMP operates on what layer of the TCP/IP Internet Model?
Internet
53
192.168.0.7/8 notation denotes which of the following IPv4 subnet masks?
255.0.0.0
54
TCP/IP uses ________addresses to communicate with remote hosts.
IP
55
The standard port number for Telnet is 53.
False / 23
56
Is this IP address configuration valid for an internet host? IP: 100.134.251.3 Subnet: 255.257.240.0
False
57
A technician, Fred, needs to troubleshoot a recently installed NIC. He decides to ping the local loopback address. Which of the following is a valid IPv4 loopback address? Group of answer choices 127.0.0.1 172.16.1.1 10.0.0.1 192.168.1.1
127.0.0.1
58
The network layer address for IP is ten bytes long when using IPv4.
False / 4 bytes
59
True or False: Subnetting can be used to create more broadcast domains.
True
60
Which of the following are valid subnet masks for a Class C network? (Select all that apply) (remember Class networks do not allow subnetting) Group of answer choices 255.255.255.240 255.255.255.0 255.255.255.128 255.255.255.224 255.255.255.192
255.255.255.0
61
Select the IP address that is in the reserved private address space.
10.50.68.220
62
A client computer is typically assigned a data link layer address by a:
hardware manufacturer
63
What is the last valid host on the subnetwork 172.21.247.0 255.255.255.0?
172.21.247.254
64
What are two ways to represent a network mask that would allow 45 hosts?
255.255.255.192 /26
65
While troubleshooting a connectivity issue, a network technician determines the IP address of a number of workstations is 169.254.0.0/16 and the workstations cannot access the Internet. Which of the following should the technician check to resolve the problem?
DHCP server
66
203.50.5.0 is an example of which of the following network classes?
Class C
67
Which subnet does host 172.28.245.101/28 belong to?
172.28.245.96/28
68
What address Class does 187.16.33.1/24 belong to?
Class B
69
The transport layer routes messages through the network selecting the best path from the source to the destination station.
False
70
Identify the class of the following IP address: 146.203.143.101.
Class B
71
A destination port number at the transport layer identifies which application on a computer should receive the data transmission.
True
72
TCP uses _____________ so that the destination station can reassemble the packets into the correct order.
Sequence numbers
73
When an IP datagram gets forwarded to a medium with a smaller frame size the datagram must be fragmented. The fragments are reassembled…
host destination
74
What is the first valid host on the subnetwork that the node 172.22.17.46/28 belongs to?
172.22.17.33
75
At which of the following layers do IP addresses exist? Group of answer choices TCP/IP model Internet layer OSI model Physical layer OSI model Data Link layer TCP/IP model Transport layer
TCP/IP model Internet layer
76
With QoS routing different __________ are defined, each with different priorities.
Class of service
77
The transport layer must break messages from the application layer into several _____ that can be sent to the network layer.
Segments
78
Are these hosts on the same network Source: 197.209.70.27 Destination: 197.209.70.128 Subnet Mask: 255.255.255.128
False
79
What is the first valid host on the subnetwork that the node 172.24.121.68 255.255.255.240 belongs to?
172.24.121.65
80
What is the class full subnet mask for the ip address 200.187.60.50?
255.255.255.0
81
A TCP three-way handshake is used to establish a ___________ messaging method.
connection-oriented
82
What is the approprate subnet mask for a class B network
255.255.0.0
83
What is the broadcast address of the network 10.32.176.0 255.255.240.0?
10.32.191.255
84
What is the first valid host on the subnetwork that the node 172.24.176.118 255.255.254.0 belongs to?
172.24.176.113
85
Is this IP address configuration valid for an internet host? IP: 174.111.190.249 Subnet: 255.255.224.0
True
86
Are these hosts on the same network Source: 155.67.243.197 Destination: 155.67.243.191 Subnet Mask: 255.255.255.192
False
87
Are these hosts on the same network Source: 41.52.156.225 Destination: 41.53.255.254 Subnet Mask: 255.254.0.0
True
88
TCP/IP operates only as connection-oriented.
False
89
Transmission Control Protocol/Internet Protocol was developed for ________ in 1974.
ARPANET
90
TCP includes a sequence number so that the packets can be reassembled at the destination in the correct order.
True
91
What is the broadcast address of the network 172.26.8.0/23
172.26.15.255
92
Are these hosts on the same network Source: 108.20.225.64 Destination: 108.15.0.1 Subnet Mask: 255.240.0.0
False
93
Given the subnet mask 255.255.248.0. How many host addresses are on this network?
2046
94
Enter the subnet the host 172.28.76.177/18 belongs to:
172.28.64.0/18
95
Your ISP sent you the following information. Default Gateway 10.75.69.32/27 What is the proper subnet mask for this IP address (in dotted decimal format)?
255.255.255.224
96
IP is responsible for error-free delivery of packets on a TCP/IP network.
False
97
When TCP/IP translates an application layer address into an IP address, it sends a special __________ to the nearest DNS server.
DNS request packet
98
Which of the following protocols resolves IP addresses to MAC addresses?
ARP
99
Convert the decimal number 73 to binary.
01001001
100
A multicast message can be used to send a message to a maximum of two other computers.
False

IT 2600 (13 decks)

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