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CCNA > Week 1 Day 1 > Flashcards

Week 1 Day 1 Flashcards

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1
Q

What does OSI stand for?

A

Open Systems Interconnection

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2
Q

How many layers are there in the OSI model?

A

Seven layers

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3
Q

True or False: The Transport layer in the OSI model is responsible for end-to-end communication.

A

True

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4
Q

Fill in the blank: The __________ layer in the OSI model is responsible for data formatting and presentation.

A

Presentation

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5
Q

Which OSI layer is responsible for session management?

A

Session layer

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6
Q

What protocol operates at the Transport layer in the TCP/IP model?

A

TCP (Transmission Control Protocol)

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7
Q

True or False: The Network layer in the TCP/IP model corresponds to the Internet layer in the OSI model.

A

True

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8
Q

What is the primary purpose of the Application layer in both OSI and TCP/IP models?

A

To provide network services to end-user applications

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9
Q

What is the main function of the Data Link layer in the OSI model?

A

To provide node-to-node data transfer

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10
Q

Multiple choice: Which protocol is NOT part of the Transport layer? A) TCP B) UDP C) IP D) SCTP

A

C) IP

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11
Q

Fill in the blank: The __________ layer of the OSI model is responsible for routing packets across networks.

A

Network

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12
Q

What does TCP stand for?

A

Transmission Control Protocol

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13
Q

True or False: UDP is a connection-oriented protocol.

A

False

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14
Q

What does the acronym ARP stand for?

A

Address Resolution Protocol

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15
Q

Which layer of the OSI model does the Ethernet protocol operate at?

A

Data Link layer

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16
Q

Multiple choice: Which of the following is an example of a Network layer protocol? A) HTTP B) FTP C) ICMP D) SMTP

A

C) ICMP

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17
Q

What is the purpose of the ICMP protocol?

A

To send error messages and operational information about IP processing back to the source

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18
Q

Fill in the blank: __________ is a protocol that allows for the transfer of files over the Internet.

A

FTP (File Transfer Protocol)

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19
Q

True or False: The OSI model is a theoretical framework, while the TCP/IP model is a practical implementation.

A

True

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20
Q

What is the maximum size of a TCP segment?

A

65,535 bytes

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21
Q

Which layer in the TCP/IP model is responsible for ensuring reliable data transfer?

A

Transport layer

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22
Q

What is the primary function of the Link layer in the TCP/IP model?

A

To handle the physical and logical connections between devices

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23
Q

Multiple choice: Which protocol is used for secure communication over a computer network? A) HTTP B) HTTPS C) FTP D) SMTP

A

B) HTTPS

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24
Q

Fill in the blank: The __________ is used to resolve domain names to IP addresses.

A

DNS (Domain Name System)

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25
True or False: TCP uses a three-way handshake to establish a connection.
True
26
What is the purpose of the window size in TCP?
To control the flow of data and manage congestion
27
What does NAT stand for?
Network Address Translation
28
Which OSI layer handles error detection and correction?
Data Link layer
29
Multiple choice: Which protocol is used for sending email? A) HTTP B) SMTP C) FTP D) SNMP
B) SMTP
30
Fill in the blank: __________ is a connectionless protocol used for streaming media.
UDP (User Datagram Protocol)
31
True or False: The Presentation layer is responsible for the encryption and decryption of data.
True
32
What is the primary role of the Network layer?
To route packets of data from the source to the destination
33
What does CIDR stand for?
Classless Inter-Domain Routing
34
Which layer of the OSI model is responsible for establishing, managing, and terminating sessions?
Session layer
35
Fill in the blank: __________ provides a way to send packets of data over the Internet.
IP (Internet Protocol)
36
True or False: The OSI model was developed by the International Organization for Standardization (ISO).
True
37
What is the purpose of the subnet mask?
To define the network and host portions of an IP address
38
What does the acronym VLAN stand for?
Virtual Local Area Network
39
Which layer of the OSI model is responsible for segmenting data?
Transport layer
40
Multiple choice: Which of the following is an example of a Transport layer protocol? A) ARP B) TCP C) ICMP D) IP
B) TCP
41
Fill in the blank: __________ is used to encapsulate data into packets for transmission.
IP (Internet Protocol)
42
True or False: The Application layer is the highest layer in both OSI and TCP/IP models.
True
43
What protocol is used to dynamically assign IP addresses?
DHCP (Dynamic Host Configuration Protocol)
44
What is the function of the Transport layer in networking?
To provide reliable or unreliable delivery of messages
45
Which OSI layer is responsible for creating and terminating connections?
Session layer
46
Multiple choice: Which of the following protocols operates at the Application layer? A) TCP B) UDP C) HTTP D) ICMP
C) HTTP
47
Fill in the blank: __________ is the protocol used for remote login.
SSH (Secure Shell)
48
True or False: The Data Link layer is responsible for physical addressing.
True
49
What does the acronym SSL stand for?
Secure Sockets Layer
50
Which layer in the TCP/IP model handles the actual transmission of data over physical media?
Link layer
51
What is the role of the Presentation layer?
To translate data between the application and the network format
52
Multiple choice: Which protocol is used for network management? A) HTTP B) SNMP C) SMTP D) FTP
B) SNMP
53
Fill in the blank: __________ is the process of dividing a network into smaller, more manageable segments.
Subnetting
54
True or False: The Transport layer only supports TCP as a protocol.
False
55
What is the main difference between TCP and UDP?
TCP is connection-oriented while UDP is connectionless
56
Which OSI layer is responsible for the physical transmission of data?
Physical layer
57
What is the function of the Network layer in the OSI model?
To determine the best path for data to travel across networks
58
Fill in the blank: __________ is a method used to ensure that data is transmitted without errors.
Checksum
59
True or False: A switch operates at the Network layer.
False
60
What is the purpose of a router?
To route data packets between different networks
61
What does the acronym MTU stand for?
Maximum Transmission Unit
62
What does OSI stand for?
Open Systems Interconnection
63
What is the primary purpose of the OSI model?
To standardize network communications across different systems and vendors
64
How many layers are in the OSI model?
7 layers
65
What is the main function of the Application layer in the OSI model?
User interface, network services for applications
66
List two protocols associated with the Application layer of the OSI model.
* HTTP * SMTP * FTP
67
What is the function of the Presentation layer in the OSI model?
Data formatting, encryption, compression
68
Fill in the blank: The _______ layer in the OSI model is responsible for session management and dialogue control.
Session
69
What does the Transport layer in the OSI model ensure?
Reliable delivery, segmentation, flow control
70
Which protocols operate at the Transport layer of the OSI model?
* TCP * UDP
71
What is the main function of the Network layer in the OSI model?
Logical addressing, routing
72
Name a protocol used at the Network layer of the OSI model.
IP
73
What does the Data Link layer in the OSI model do?
Framing, MAC addressing, error detection
74
List two examples of protocols at the Data Link layer of the OSI model.
* Ethernet * PPP
75
What is the role of the Physical layer in the OSI model?
Transmission of raw bits over physical medium
76
Name two examples of physical media in the Physical layer.
* Cables * WiFi * Hubs
77
Describe the data flow when sending an email using the OSI model.
Data flows from Application (Layer 7) to Physical (Layer 1) and is reversed on receiving
78
What are the key features of the OSI model?
* Clear abstraction * Troubleshooting * Interoperability
79
What does TCP/IP stand for?
Transmission Control Protocol/Internet Protocol
80
When was the TCP/IP model developed?
In the 1970s
81
How many layers are in the TCP/IP model?
4 layers
82
What is the main function of the Application layer in the TCP/IP model?
User interaction, application protocols
83
What protocols are associated with the Application layer of the TCP/IP model?
* HTTP * SMTP * DNS
84
What does the Transport layer in the TCP/IP model provide?
End-to-end communication, segmentation, reliability
85
Which protocols operate at the Transport layer of the TCP/IP model?
* TCP * UDP
86
What is the function of the Internet layer in the TCP/IP model?
Routing, logical addressing
87
What does the Network Access layer in the TCP/IP model encompass?
Physical transmission, MAC addressing, framing
88
True or False: The Application layer in TCP/IP combines the OSI's Application, Presentation, and Session layers.
True
89
List the layers of the TCP/IP model from top to bottom.
* Application * Transport * Internet * Network Access
90
What is a key feature of the TCP/IP model?
Simplicity with fewer layers
91
What is the operational standard for all modern networks?
TCP/IP Model
92
What are the main differences between OSI and TCP/IP models?
* OSI has 7 layers; TCP/IP has 4 layers * OSI is theoretical; TCP/IP is practical * OSI is rarely implemented fully; TCP/IP is the basis for Internet communications
93
Fill in the blank: The OSI model is essential for learning, troubleshooting, and _______.
network design
94
What is the significance of the OSI model in education?
Used as a reference for understanding network issues and teaching networking concepts
95
True or False: All real-world network devices and software are built on the OSI model.
False

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