Cisco 100-101 Set 1

Front 1

1. Which of the following protocols are examples of TCP/IP transport layer protocols? (Choose two answers)
- a. Ethernet d. UDP
b. HTTP e. SMTP
c. IP f. TCP

Back 1

D: UDP and F: TCP

Front 2

2. Which of the following protocols are examples of TCP/IP data link layer protocols? (Choose two answers)
a. Ethernet
b. HTTP e. SMTP
c. IP f. TCP
d. UDP g. PPP

Back 2

A: Ethernet and G: PPP

Front 3

3. The process of HTTP asking TCP to send some data and making sure that it is received correctly is an example of what?
a. Same-layer interaction c. OSI model
b. Adjacent-layer interaction d. All of these answers are correct.

Back 3

b. Adjacent-layer interaction

Front 4

4. The process of TCP on one computer marking a TCP segment as segment, 1 and the receiving computer then acknowledging the receipt of TCP segment 1 is an example of what?

Back 4

a. Data encapsulation d. OSI model
b. Same-layer interaction e. All of these answers are correct.
c. Adjacent-layer interaction

Front 5

5. The process of a web server adding a TCP header to the contents of a web page, followed by adding an IP header and then adding a data link header and trailer is an example of what?

Back 5

Data encapsulation

Front 6

6. Which of the following terms is used specifically to identify the entity created when encapsulating data inside data link layer headers and trailers?
a. Data d. Frame
b. Chunk e. Packet
c. Segment

Back 6

d. Frame

Front 7

Name the layers in the Original TCP/IP model

Back 7

Application
Transport
Internet
Link

Front 8

Name the layers in the updated TCP/IP model

Back 8

Application
Transport
Network
Data Link
Physical

Front 9

Name the layers of the OSI Model

Back 9

Application
Physical
Session
Transport
Network
Data Link
Physical

Front 10

Define the functions of the OSI Application layer

Back 10

Provides an interface between the communications software and any applications that need to communicate outside the computer on which the application resides. Also defines processes for user authentication

Front 11

Define the functions of the OSI Presentation Layer

Back 11

Defines and negotiates data formats such as: ASCII text, EBCDIC text, binary, BCD, and JPEG. Encryption is also defined by OSI as a presentation layer service

Front 12

Define the functions of the OSI Session Layer

Back 12

Defines start, control, and end of conversations (sessions). Includes control and management of multiple bidirectional messages so application can be notified if some data did not arrive. Allows presentation layer to have seamless view of incoming data streams.

Front 13

Define the functions of the OSI Transport Layer

Back 13

Provides a large number of services relating to data delivery to another computer, such as error recovery and flow control.

Front 14

Define the functions of the OSI Network Layer

Back 14

Defines three main features: logical addressing, routing and path determination.

Front 15

Define the functions of the OSI Data Link Layer

Back 15

Defines the rules that determine when a device can send data over a particular medium. Define the format of a header and trailer that allows devices attached to the medium to successfully send and receive data.

Front 16

Define the functions of the OSI Physical Layer

Back 16

Defines the physical media used for transferring data, cabling standards, and the means of transferring the raw bits over the media.

Front 17

This layer provides an interface between the communications software and any applications that need to communicate outside the computer on which the application resides.

Back 17

Application Layer

Front 18

This layer defines processes for user authentication

Back 18

Application Layer

Front 19

This layer Defines and negotiates data formats such as ASCII text, EBCDIC text, binary, BCD, and JPEG.

Back 19

Presentation Layer

Front 20

This layer defines encryption

Back 20

Presentation Layer

Front 21

This layer defines how to start, control, and end conversations

Back 21

Session Layer

Front 22

This layer includes the control and management of multiple bidirectional messages so that the application can be notified if only some of a series of messages are completed.

Back 22

Session Layer

Front 23

This layer allows the presentation layer to have a seamless view of an incoming stream of data.

Back 23

Session Layer

Front 24

This layer provides a large number of services relating to data delivery to another computer such as error recovery and flow control.

Back 24

Transport Layer

Front 25

This layer defines three main features: logical addressing, routing and path determination.

Back 25

Network Layer

Front 26

This layer defines the rules that determine when a device can send data over a particular medium.

Back 26

Data Link Layer

Front 27

This layer define the format of a header and trailer that allows devices attached to the medium to successfully send and receive data.

Back 27

Data Link Layer

Front 28

This layer defines the physical media used for transferring data.

Back 28

Physical Layer

Front 29

This layer defines cabling standards

Back 29

Physical Layer

Front 30

This layer defines the means of transferring the raw bits over the media.

Back 30

Physical Layer

Front 31

Name that Layer
HTTP

Back 31

Application

Front 32

Name that Layer
IP

Back 32

Internet

Front 33

Name that Layer
TCP

Back 33

Transport

Front 34

Name that Layer
Ethernet

Back 34

Data Link

Front 35

Name that Layer
POP3

Back 35

Application

Front 36

Name that Layer
PPP (Point-to-Point protocol)

Back 36

Data Link

Front 37

Name that Layer
SMTP

Back 37

Application

Front 38

Name that Layer
UDP

Back 38

Transport

Front 39

Name that Layer
T1

Back 39

Data Link

Front 40

First step to encapsulate data on the sending host

Back 40

Step 1. Create and encapsulate the application data with any required application layer headers. For example, the HTTP OK message can be returned in an HTTP header, followed by part of the contents of a web page.

Front 41

Second step to encapsulate data on the sending host

Back 41

Step 2. Encapsulate the data supplied by the application layer inside a transport layer header. For end-user applications, a TCP or UDP header is typically used

Front 42

Third step to encapsulate data on the sending host

Back 42

Step 3. Encapsulate the data supplied by the transport layer inside a network layer (IP) header. IP defines the IP addresses that uniquely identify each computer.

Front 43

Fourth step to encapsulate data on the sending host

Back 43

Step 4. Encapsulate the data supplied by the network layer inside a data link layer header and trailer. This layer uses both a header and a trailer.

Front 44

Fifth step to encapsulate data on the sending host

Back 44

Step 5. Transmit the bits. The physical layer encodes a signal onto the medium to transmit the frame.

Front 45

Which layers provide services, and which layers make requests?

Back 45

Lower layers provide services to upper layers. Upper layers make requests to lower layers

Front 46

Benefits of using a layered network model

Back 46

Allows different parts of the network to function independently without having to think of other fuctions.

Front 47

Define Adjacent-layer Interaction

Back 47

Two adjacent layers work together with Lower layers provide services to upper layers and upper layers making requests

Front 48

Define Deencapsulation

Back 48

On a computer that receives data over a network, the process in which the device interprets the lower-layer headers and, when finished with each header, removes the header revealing the next-higher-layer PDU.

Front 49

Define Encapsulation

Back 49

The placement of data from a higher-layer protocol behind the header (and in some cases, between a header and trailer) of the next-lower-layer protocol.

Front 50

Define Frame

Back 50

A term referring to a data link header and trailer, plus the data encapsulated between the header and trailer.

Front 51

Define Networking Model

Back 51

A generic term referring to any set of protocols and standards collected into a comprehensive grouping that, when followed by the devices in a network, allows all the devices to communicate. Examples include TCP/IP and OSI.

Front 52

Define Packet

Back 52

A logical grouping of bytes that includes the network layer header and encapsulated data, but specifically does not include any headers and trailers below the network layer.

Front 53

Define Protocol Data Unit

Back 53

A generic term referring to the header defined by some layer of a networking model, and the data encapsulated by the header (and possibly trailer) of that layer, but specifically not including any lower-layer headers and trailers.

Front 54

Define Same-layer interaction

Back 54

Communication b/t 2 networking devices at a networking model layer using a header defined by that layer. Devices set values in header, send the header and encapsulated data, and the receiving device(s) interpret the header to decide what action to take.

Front 55

Define Segment (TCP)

Back 55

In TCP, a TCP header and encapsulated data (also called an L4PDU). Also, the process of accepting a chunk of data from the application layer and breaking it into smaller pieces for TCP segments.

Front 56

Define Segment (Ethernet)

Back 56

In Ethernet, either a single Ethernet cable or a single collision domain (no matter how many cables are used).