Part 1 : Chapter 1 - Introduction to TCP/IP Networking Flashcards
What is the most pervasive model used in the world?
TCP/IP
Layer 1 PDU
Layer 2 PDU
Frame
Layer 3 PDU
Layer 4 PDU
Layer 5 PDU
Layer 6 PDU
Layer 7 PDU
Which layer in TCP/IP Model adds header and trailer while sending the data?
The Data Link Layer
“ The Data link layer add LH (Link Header) and LT (Link Trailer) to the Ethernet frame.
What is the name of he process of putting headers (sometime trailers) to the data?
Data Encapsulation
Which networking model uses PDU?
OSI
What is Protocol Data Unit?
Which of the following protocols are examples of TCP/IP transport layer protocols? (Choose two answers.) a. Ethernet b. HTTP c. IP d. UDP e. SMTP f. TCP
UDP
TCP
Which of the following protocols are examples of TCP/IP data-link layer protocols? (Choose two answers.) a. Ethernet b. HTTP c. IP d. UDP e. SMTP f. TCP g. PPP
Ethernet
PPP
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 b. Adjacent-layer interaction c. OSI model d. All of these answers are correct.
b. Adjacent-layer interaction
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? a. Data encapsulation b. Same-layer interaction c. Adjacent-layer interaction d. OSI model e. All of these answers are correct.
b. Same-layer interaction
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?
a. Data encapsulation
b. Same-layer interaction
c. OSI model
d. All of these answers are correct.
a. Data encapsulation
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
b. Chunk
c. Segment
d. Frame
e. Packet
e. Packet
Which OSI encapsulation term can be used instead of the term frame?
a. Layer 1 PDU
b. Layer 2 PDU
c. Layer 3 PDU
d. Layer 5 PDU
e. Layer 7 PDU
b. Layer 2 PDU
What is Adjacent Layer Interaction?
The general topic of how on one computer, two adjacent layers in a networking architectural model work together, with the lower layer providing services to the higher layer.
What is De-capsulation?
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.
What is Encapsulation?
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. For example, an IP packet could be encapsulated in an Ethernet header and trailer before being sent over an Ethernet.
What is frame?
A term referring to a data-link header and trailer, plus the data encapsulated between the header and trailer.
What is Networking Model?
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.
What is packet?
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.
What is Protocol Data Unit (PDU)?
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.
