OSI Reference Model – Practice Test
(86).jpg "OSI Reference Model Practice Test - Quiz")
By IMS Asia (https://www. Imsasia. Com)
- 1.The OSI reference model is a seven-layer reference model that originated from the
- A.
ISO standards committee
- B.
ITU standards committee
- C.
IEEE standards committee
- D.
ANSI standards committee
- 2.What are the seven-layers of the OSI reference model?
- A.
Application, presentation, dialog, transport, network, datalink, bit
- B.
Application, data format, dialog, transport, network,datalink, bit
- C.
Application, data format, dialog, end-to-end connection, network, datalink, bit
- D.
Application, presentation, session, transport, network, data link, physical
- 3.What is the function of the Application Layer as described by the OSI reference model?
- A.
Provides network services to user applications
- B.
Provides desktop connectivity to the LAN
- C.
Provides desktop connectivity to the WAN
- D.
None of the above
- 4.Data is referred to as _________ at the Application Layer?
- A.
Data
- B.
Packets
- C.
Segments
- D.
Bits
- E.
Frames
- 5.What are some of the common standards that are implemented at the Application Layer?
- A.
SMTP, TELNET, FTP, CMIP
- B.
NetBIOS, LAT, DDP, SNA
- C.
IP, IPX, DDP
- D.
SDLC, LAT, NETBIOS
- 6.What is the function of the Presentation Layer, as described by the OSI reference model?
- A.
Provides data representation and format to the Application Layer
- B.
Provides presentation services to the Presentation Layer.
- C.
Converts application data to binary.
- D.
Converts application data to EBCDIC.
- 7.What are some of the common standards that are implemented at the Presentation Layer?
- A.
TFTP, SMTP, SNMP, TELNET
- B.
NetBIOS, LAT, DDP, SNA
- C.
JPEG, PIC, MPEG, QTIME, ASN.1, SMB, NCP
- D.
SDLC, LAT, NETBIOS
- 8.What is the function of the Session Layer, as described by the OSI reference model?
- A.
Conversation steering
- B.
Conversation steering in half-duplex mode
- C.
Establishes, maintains and manages sessions between applications
- D.
Conversation negotiations
- 9.What are some of the common standards that are implemented at the Session Layer?
- A.
TFTP, SMTP, SNMP, TELNET
- B.
NetBIOS names, SNA Session, NFS, Xwindows, RPC, SQL
- C.
JPEG, PIC, MPEG, QTIME, ASN.1, SMB, NCP
- D.
SDLC, LAT, NETBIOS
- 10.What is the function of the Transport Layer, as described by the OSI reference model?
- A.
Management of streaming data
- B.
Segments and reassembles data into a data stream
- C.
Always guarantees delivery
- D.
Never guarantees delivery
- 11.Data is referred to as _________ at the Transport Layer?
- A.
Data
- B.
Packets
- C.
Segments
- D.
Bits
- E.
Frames
- 12.What are some of the common standards that are implemented at the Transport Layer?
- A.
TFTP, SMTP, SNMP, TELNET
- B.
NetBIOS names, SNA Session, NFS, Xwindows, RPC, SQL
- C.
JPEG, PIC, MPEG, QTIME, ASN.1, SMB, NCP
- D.
TCP, UDP,CON, CNLS, SPX
- 13.What is the function of the Network Layer, as described by the OSI reference model?
- A.
Manages device addressing and tracks location of devices on the network
- B.
Manage the connectivity of all networks within an anonymous system
- C.
Manage the availability of all networks within an anonymous system
- D.
All of the above
- 14.What device operates at the Network Layer?
- A.
Switches
- B.
Bridges
- C.
Hubs
- D.
Routers
- 15.Data is referred to as _________ at the Application Layer?
- A.
Data
- B.
Packets
- C.
Segments
- D.
Bits
- E.
Frames
- 16.What are some of the common standards that are implemented at the Network Layer?
- A.
LAT, NETBIOS, IP, DDP
- B.
NetBIOS, LAT, DDP, SNA
- C.
IP, IPX, DDP
- D.
SDLC, LAT, NETBIOS
- 17.What is the function of the Data Link Layer, as described by the OSI reference model?
- A.
Provides access to the physical media.
- B.
Describes the framing standard.
- C.
Describes the error correction mechanism that will be used.
- D.
None of the above.
- 18.What are some common standards that are implemented at the Data Link Layer? (Select all correct answers)
- A.
Ethernet
- B.
IEEE 802.3
- C.
Frame-Relay
- D.
HDLC
- E.
PPP
- 19.Data is referred to as __________ at the Data Link Layer?
- A.
Data
- B.
Packets
- C.
Segments
- D.
Bits
- E.
Frames
- 20.What devices operate at the Data Link Layer?
- A.
Switches
- B.
Bridges
- C.
Hubs
- D.
Routers
- 21.What is the primary difference between an Ethernet and IEEE 802.3 frame?
- A.
Ethernet has a length field and the IEEE 802.3 frame has a type field.
- B.
Ethernet has a type field and the IEEE 802.3 frame has a length field.
- C.
The preamble field is larger in the Ethernet Frame.
- D.
The preamble field is smaller in the Ethernet Frame.
- 22.IEEE committee subdivided the Data Link Layer into two sublayers, they are?
- A.
SNAP and SAP sublayers
- B.
LLC and SAP sublayers
- C.
LLC and MAC sublayers
- D.
LLC and SNAP sublayers
- 23.How does IEEE 802.3 reference what protocol resides at layer three?
- A.
Ethernet type field
- B.
Length field
- C.
LLC header
- D.
None of the above
- 24.What is the function of the Physical Layer, as described by the OSI reference model?
- A.
Provides the electrical, mechanical, procedural and functional means for activating and maintaining the physical link between systems.
- B.
Binary transmission
- C.
Physical Layer encoding
- D.
All of the above
- 25.Data is referred to as __________ at the Physical Layer Layer?
- A.
Data
- B.
Packets
- C.
Segments
- D.
Bits
- E.
Frames
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