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WorksheetsIFT 303 Quiz one
Total questions: 25
Worksheet time: 13mins
Which statement is a valid reason the OSI reference model was created?
It encourages vendors to create proprietary standards for any component of theOSI.
It allows for changes on one layer to apply to another layer so they can worktogether.
It prevents industry standardization of network processes.
It divides network communication into smaller components for design andtroubleshooting.
When a program uses encryption such as SSL, which layer is responsible?
Presentation layer
Transport layer
Data Link layer
Session layer
Which device would primarily function at the Data Link layer?
Routers
Firewalls
Gateways
Switches
Which OSI layer is responsible for logical addressing?
Transport layer
Network layer
Application layer
Data Link layer
Which is the proper order of the OSI layers
Application, Transport, Session, Presentation, Network, Data Link, Physical
Presentation, Application, Session, Transport, Network, Data Link, Physical
Application, Presentation, Session, Transport, Network, Data Link, Physical
Application, Presentation, Transport, Network, Session, Data Link, Physical
Which OSI layer is responsible for connection-oriented communication?
Transport layer
Presentation layer
Data Link layer
Application layer
Which layer is responsible for compression and decompression?
Application layer
Physical layer
Session layer
Presentation layer
Which layer of the OSI is responsible for dialog control of applications?
Application layer
Physical layer
Session layer
Network layer
At which layer of the OSI can you find DTE and DCE interfaces?
Application layer
Physical layer
Session layer
Transport layer
At which DoD model layer does Telnet, TFTP, SNMP, and SMTP function?
Host-to-Host layer
Process/Application layer
Internet layer
Network Access layer
The receiving computer checked the checksum of a frame. It had been damaged during transfer, so it is discarded. At which layer of the OSI did this occur?
Physical layer
Data Link layer
Network layer
Session layer
Which layer in the DoD model is responsible for routing?
Host-to-Host layer
Process/Application layer
Internet layer
Network Access layer
Which devices create collision domains, raising effective bandwidth?
Firewalls
Hubs
Routers
Switches
Which device acts like a multiport repeater?
Firewall
Hub
Router
Switch
Which layer of the OSI defines the PDU, or protocol data unit, of segments
Application layer
Session layer
Network layer
Transport layer
What is the correct order of encapsulation?
User datagrams, packets, segments, frames, bits
User datagrams, sessions, segments, packets, frames, bits
User datagrams, segments, packets, frames, bits
Bits, frames, sessions, packets, user datagrams
Which application provides terminal emulation over a network?
SNMP
Telnet
HTTP
TFTP
Which protocol is responsible for identifying upper-layer network protocols at theData Link layer?
LLC
MAC
802.3
FCS
What is required before TCP can begin sending segments?
Three-way handshake
Port agreement
Sequencing of segments
Acknowledgment of segments
Why does DNS use UDP?
DNS requires acknowledgment of the request for auditing.
The requests require flow control of UDP.
DNS requests are usually small and do not require connections setup.
DNS requires a temporary virtual circuit.
Which mechanism allows for programs running on a server (daemons) to listenfor requests through the process called binding?
Headers
Port numbers
MAC address
Checksums
Which is a correct statement about the Transmission Control Protocol (TCP)?
TCP is a connectionless protocol.
TCP allows for error detection and correction.
TCP is faster than UDP.
TCP allows for retransmission of lost segments.
Flow control can be found at which layer of the OSI?
Transport layer
Network layer
Data Link layer
Session layer
Which is not a common cause for LAN congestion?
Broadcasts
Multicasts
Adding switches for connectivity
Using multiple hubs for connectivity
How does TCP guarantee delivery of segments to the receiver?
Via the destination port
TCP checksums
Window size
Sequence and acknowledgment numbers
