CompTIA Network+ N10-008 Exam OSI Model Quiz
MTU (maximum transmission unit)
A limit on the maximum amount of data that can be transmitted over a network without fragmentation is referred to as: DSU CSU Data payload MTU
Session Layer of the OSI model
Authentication and authorization take place at the: Application layer of the OSI model Network layer of the OSI model Session layer of the OSI model Presentation layer of the OSI model
Presentation layer of the OSI model
Data format translation, data compression, and data encryption/decryption take place at the: Application layer of the OSI model Presentation layer of the OSI model Session layer of the OSI model Transport layer of the OSI model
Frame
In the OSI model, the layer 2 PDU is called: Bit Frame Packet Segment Datagram
Packet
In the OSI model, the layer 3 PDU is known as: Bit Frame Packet Segment Datagram
Segment
In the OSI model, the layer 4 TCP PDU is known as: Bit Frame Packet Segment Datagram
Datagram
In the OSI model, the layer 4 UDP PDU is called: Bit Frame Packet Segment Datagram
TRUE
In the OSI model, the payload data (a.k.a. user data) is the actual data that is being nested between header and tail control information. True False
Bit
In the OSI model, the physical layer PDU is known as: Bit Frame Packet Segment Datagram
False
In the context of the OSI model, the term "Data encapsulation" is used to describe a process where each layer of the OSI model adds its own control information to the original data that is being passed across the layers from the physical layer up to the application layer. True False
Data Link Layer (Layer 2)
Layer 2 of the OSI model is also referred to as: Transport layer Network layer Data link layer Physical layer
Transport Layer
Layer 4 of the OSI model is also known as: Network layer Data link layer Session layer Transport layer
Session Layer (Layer 5)
Layer 5 of the OSI model is also referred to as: Session layer Application layer Transport layer Presentation layer
Layer 1 - Physical
Physical layer of the OSI model is also known as: Layer 2 Layer 7 Layer 1 Layer 4
Layer 7 - Application
The application layer of the OSI model is also known as: Layer 1 Layer 3 Layer 6 Layer 7
Layer 6 of the OSI Model
The term "Presentation layer" refers to: Layer 7 of the OSI model Layer 5 of the OSI model Layer 6 of the OSI model Layer 4 of the OSI model
False
Transmission Control Protocol (TCP) is an example of a connectionless protocol. Because TCP does not support three-way handshake while establishing a network connection, it is referred to as unreliable or best-effort protocol. Example applications of TCP include transmission of video and audio streaming data. True False
False
User Datagram Protocol (UDP) is a connection-oriented protocol using a three-way handshake which is a set of initial steps required for establishing network connection. UDP supports retransmission of lost packets, flow control (managing the amount of data that is being sent), and sequencing (rearranging packets that arrived out of order). Example applications of UDP include transmission of text and image data. True False
MAC Address Network Switch Ethernet Frame
What are the characteristic components of the OSI data link layer? (Select 3 answers) MAC address IP packet Network switch Router Network cabling Ethernet frame
IP
What is the name of a network layer protocol that specifies the format of packets and addressing scheme in network communications? UDP IP TCP NetBIOS
Session Layer (Layer 5)
Which OSI layer assumes the responsibility for opening, closing, and maintaining connections between applications? Network layer Data link layer Application layer Session layer
Switch
Which of the answers listed below refers to a data link layer device designed to forward frames between network segments? Hub Switch Firewall Router
SYN ACK
Which of the following TCP flags are used for establishing a network connection via TCP three-way handshake? (Select 2 answers) RST SYN FIN ACK URG
Layer 3 Header
Which of the following answers does not refer to the OSI TCP segment header? Layer 4 header Source port number Destination port number Layer 3 header Sequence number Checksum field
Layer 3 Header
Which of the following answers does not refer to the OSI UDP datagram header? Length in bytes Destination port number Layer 4 header Source port number Checksum field Layer 3 header
Source IP address Destination IP address
Which of the following answers refer to examples of network layer header data? (Select 2 answers) Source IP address Destination IP address Source port number Destination port number
Source MAC address Destination MAC address
Which of the following answers refer to the OSI layer 2 header data? (Select 2 answers) Destination port number Source MAC address Destination MAC address Source port number
Router IP Address Packet
Which of the following answers refer to the OSI network layer components? (Select 3 answers) Router Ethernet frame IP address TCP/UDP protocols Packet Network switch
HTTP FTP SMTP
Which of the following protocols reside(s) at the application layer of the OSI model? (Select all that apply) ATM HTTP FTP IP SMTP TCP/UDP
Hub Network Cabling Repeater
Which of the following reside at the physical layer of the OSI model? (Select 3 answers) IP address Network switch Hub Router Network cabling Ethernet frame Repeater
Layer 3
Which of the following terms refers to the OSI network layer? Layer 2 Layer 5 Layer 3 Layer 4
UDP TCP
Which of the protocols listed below reside at the OSI transport layer? (Select 2 answers) UDP IP SSL/TLS ICMP TCP ATM
