1.3.6 Practice Questions ISO
Which OSI model layer is responsible for guaranteeing reliable message delivery? Session Application Transport Data Link
Transport
Which of the following functions are performed at the Physical layer of the OSI model? Moving data across network cables. Data translation Conversation identification Enabling network services Provisioning environments where you can run network applications
Moving data across network cables.
HTTP
Application Layer
Which of the following tasks is associated with the Session layer? Acknowledgement coordination Transmission synchronization Host ID number assignment Connection establishment
Connection establishment
Packets
Network Layer
Internet TCP/IP Layer
Network OSI Layer
Router
Network layer layer
In the OSI model, what is the primary function of the Network layer? Transmit data frames Allows applications to establish, use and end a connection. Routes messages between networks. Ensures that packets are delivered with no loss or duplication.
Routes messages between networks.
Which of the following are included as part of Data Link layer specifications?(Select two.) Controlling how messages are propagated through the network. Synchronizing individual bits as they are transmitted through the network. Identifying physical network devices. Composing electrical signals as they pass through the transmission medium.
Controlling how messages are propagated through the network. Identifying physical network devices.
What is the basic purpose of the OSI Physical layer? Coordinates rules for managing network servers. Coordinates rules for routing packets. Defines basic physical structures, such as disks. Coordinates rules for transmitting bits.
Coordinates rules for transmitting bits.
Frames
Data Link Layer
Network Access TCP/IP Layer
Data Link OSI Layer
Switch
Data Link layer
In the OSI model, which of the following functions are performed at the Application layer?(Select all that apply.) Enabling communication between network clients and services Conversation identification Integrating network functionality into the host operating system Data translation
Enabling communication between network clients and services Integrating network functionality into the host operating system
Which of the following functions are performed by the OSI Transport layer?(Select three.) Consistent data formatting between dissimilar systems End-to-end flow control Data segmentation and reassembly Control media access, logical topology, and device identification Format packets for delivery through the media Reliable message delivery Path identification and selection
End-to-end flow control Data segmentation and reassembly Reliable message delivery
The Data Link Layer of the OSI model is comprised of two sublayers. What are they?(Select two.) SAN DLC LAT LLC MAC
LLC MAC
Which of the following are functions of the MAC sublayer? Letting devices on the network have access to the LAN Defining a unique hardware address for each device on the network Creating routing tables based on MAC addresses Mapping hardware addresses to link layer addresses
Letting devices on the network have access to the LAN Defining a unique hardware address for each device on the network
Bits
Physical Layer
Modem
Physical Layer
Application TCP/IP Layer
Presentation OSI Layer Application Session
ASCII
Presentation layer
Session ID number
Session layer
In the OSI model, which of the following functions are performed at the Presentation layer?(Select two.) Specify data format (such as file formats) Provide network services Maintain separate client connections Handle general network access, flow control, and error recovery Transmits data frames Encrypt and compress data
Specify data format (such as file formats) Encrypt and compress data
Segments
Transport Layer
Host-to-Host TCP/IP Layer
Transport OSI Layer
Port numbers
Transport layer