Quiz
Open Systems Interconnect (OSI) Model
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Perguntas do quiz (28)
1What best describes the Open Systems Interconnection model (OSI) ?
- AA physical model that contains seven layers and provides different vendors to communicate on the network.
- BIts a conceptual model that characterizes and standardizes the internal functions of the a communication system by partitioning it into abstraction layers.
2What is layer 1: Physical layer ?
- AProvides the functional and procedural means to transfer data between network entities and to detect and possibly correct errors that may occur in the physical layer.
- BProvides the functional and procedural means of transferring variables length data sequences from a source host on one network to a destination host on a different network.
- CDefines the electrical and physical specifications for devices.
3What best describes the Data Link Layer?
- AProvides the functional and procedural means of transferring variables length data sequences from a source host on one network to a destination host on a different network. It routes packets through logical addressing.
- BDefines the electrical and physical specifications for devices.
- CDefines how data is formatted for transmission and how access to the network is controlled. Provides error detection but no flow control using sliding window.
4What best describes the Network Layer?
- AIt segments and reassembles data in to a data stream. Services in this layer segment and reassembles data from upper layer applications.
- BProvides the physical transmission of data and handles error notification, network topology, and flow control.
- CManages device addressing, tracks the locations of devices in the network and determines the best way to move data through logical addressing.
5What best describes the Transport Layer?
- AManages device addressing, tracks the locations of devices in the network and determines the best way to move data through logical addressing.
- BProvides the physical transmission of data and handles error notification, network topology, and flow control.
- CIt segments and reassembles data in to a data stream. Services in this layer segment and reassembles data from upper layer applications.
6What best describes the Session Layer?
- AProvides the physical transmission of data and handles error notification, network topology, and flow control.
- BDefines the electrical and physical specifications for devices.
- CDefined as a translator and provides coding and conversion functions. Presents data to the Application layer and is responsible for data translation and code formatting.
7What best describes the Session Layer?
- AManages device addressing, tracks the locations of devices in the network and determines the best way to move data through logical addressing.
- BIts responsible for setting up, managing and tearing down sessions between Presentation Layer entities.
- CIt segments and reassembles data in to a data stream. Services in this layer segment and reassembles data from upper layer applications.
8What are examples of the Physical Layer?
- AIPv4 and IPv6 used in logical addressing
- BHubs and Repeaters. Also transmission media such as copper and fiber.
- CHardware addressing, flow control and error notification.
9What are examples of Data Link Layer?
- APhysical addressing, Network topology, Flow control and Error notification.
- BTCP and UDP
- CIPv4 and IPv6
- DFIle, print, messages, database and application services
10What are examples of Network Layer?
- AHubs and Repeaters
- BIPv4 and IPv6
- CTCP and UDP
11What are examples of the Transport Layer? (Pick Two)
- ARouting using IPv4 and IPv6
- BDialog control and sessions.
- CEstablishes sessions and tearing down virtual circuit.
- DData encryption, compression, and translation services.
- EUDP and TCP.
12What are examples of the Session Layer? (Pick two)
- AData encryption, compression, and translation services.
- BPhysical topology
- CKeeps applications data separate from other applications data.
- DFile, print, message and database.
- Edialog control, simplex mode, half duplex mode, and full duplex mode.
13What are examples of the Application Layer? (Pick Two)
- ATCP and UDP
- BPhysical Topologies
- CTelnet, HTTP, Email, SSH, DNS, FTP, SMTP and LDAP, and SNMP.
- DDHCP
14The Data Link Layer provides _____________ transmission of data and handles ____________ notification.
- A1) fast 2) network
- B1) physical 2) error
- C1) access control 2) error
15What is the Media Access Control (MAC) IEEE 802.3 ?
- AIt is a sublayer of the Data Link layer that is responsible for physical addressing. It defines how packets are placed on the media. Its called media access since it acts as a first come first service access.
- BIt is a sublayer of the Data Link layer that is responsible for identifying network layer protocols and encapsulating them. Its header tells the data link layer what to do with the packet once a frame is received.
16What is the Logical Link Control (LLC) IEEE 802.2 ?
- AIt is a sublayer of the Data Link layer that is responsible for identifying network layer protocols and encapsulating them. Its header tells the data link layer what to do with the packet once a frame is received.
- B
It is a sublayer of the Data Link layer that is responsible for physical addressing. It defines how packets are placed on the media. Its called media access since it acts as a first come first service access.
17MAC address is a _____ bit ___________ address
- A48 bit hexadecimal address
- B64 bit hexadecimal address
- C128 bit hexadecimal address
18In a 48 bit MAC address, what represents the first 24 bits and what represents the remaining 24 bits?
- AThe first 24 bits is the unique serial number and the second 24 bits represent the OUI
- BThe first 24 bits is the customer number and the second 24 bits represent the unique serial number
- CThe first 24 bits is the vendor (Organizational Unique Identifier) and the second 24 bits represent the unique serial number.
19What is Ethernet?
- AIts a topology that allows network access for data transmission in the network
- BIt is a contention media access method that allows all users on the network to share the same bandwidth.
20Ethernet is a popular technology since its scalable as its easy to integrate new technologies. It uses both the data link layer and physical layer specifications.
- AVerdadeiro
- BFalso
21What is a unicast?
- AIt communicates with the LAN as a one to many hosts.
- BIt communicates with the LAN as a one to one host.
- Cit communicates with the LAN as a one to certain hosts
- DIt communicates with the LAN as a one to nearest host
22What is multicast?
- AIt communicates with the LAN as a one to many hosts.
- BIt communicates with the LAN as a one to one host.
- Cit communicates with the LAN as a one to certain hosts
- DIt communicates with the LAN as a one to nearest host
23What is Broadcast?
- AIt communicates with the LAN as a one to many hosts.
- BIt communicates with the LAN as a one to one host.
- Cit communicates with the LAN as a one to certain hosts
- DIt communicates with the LAN as a one to nearest host
24What is an anycast?
- AIt communicates with the LAN as a one to one host.
- BIt communicates with the LAN as a one to many hosts.
- CIt communicates with the LAN as a one to nearest host
- Dit communicates with the LAN as a one to certain hosts
25What is the IEEE 802.11 standard used for?
- AIts used for the physical layer as an enhanced Ethernet transmission access method.
- BIts used for implementing wireless local area network (WLAN).
26IEEE 802.3 standard has 6 bytes for both Source and Destination addresses and 1 byte for both Destination Service Access Point (DSAP) and Source Service Access Point (SSAP).
- AVerdadeiro
- BFalso
27The Ethernet_II frame does not have the DSAP nor the SSAP field but instead has a two byte "Type Field" which is roughly equivalent to the DSAP field of 802.3 frame which relates to the network layer information.
- AVerdadeiro
- BFalso
28Half duplex operates in a shared collision domain and Full duplex operates in a private collision domain.
- AVerdadeiro
- BFalso
Informações
- Descrição
- Understanding the Seven Layers of the OSI network model
- Autor
- sirhulk1
- Idioma
- English
- Visualizações
- 182
- Etiquetas
- Avaliação
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