Geographical Dispersion Of Network Components

61 Questions | By Edin86 | Updated: Mar 21, 2022 | Attempts: 229

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1.

To accomplish DNAT, a gateway performs PAT (Port Address Translation). With PAT each client session with a server on the Internet is assigned a separate TCP port number. When the client issues a request to the server, its datagram’s source address includes this port number. When the Internet server responds, its datagram’s destination address includes the same port number. This allows the gateway to send the response to the appropriate client. PAT is the most common type of address translation used on small office and home networks.
2.

Which of the following is NOT an example of an application that can travel over a network's connections?
- A.
  
  Voice over IP (VoiceIP)
- B.
  
  Email
- C.
  
  Instant Messaging (IM) between computers with IM software installed
- D.
  
  File sharing between computers
- E.
  
  Local Area Network
3.

Which of the following is a NOT a network category based on the geographical dispersion of network components?
- A.
  
  Local-Area Network (LAN)
- B.
  
  Campus Area Network (CAN)
- C.
  
  World area network (WAN)
- D.
  
  Personal Area Network (PAN)
- E.
  
  Metropolitan Area Network (MAN)
4.

A converged network is a network that has the capabilities of transporting multiple types of traffic such as voice, video, and data, which can offer significant cost savings to organizations.
- A.
  
  True
- B.
  
  False
5.

IEEE stands for the Institute of Electrical and Electronics Engineers, and it is an internationally recognized standards body
- A.
  
  True
- B.
  
  False
6.

When interconnecting multiple sites (for example, multiple corporate locations) via WAN links, a hub-and-spoke topology has a WAN link from each remote site , a spoke site) to the main site , the hub site). The diagram below shows a hub-and-spoke topology.
- A.
  
  True
- B.
  
  False
7.

Which of the following applies to client-server network? (Choose 2)
- A.
  
  Administration of client-server is more difficult than in a peer-to-peer network since the resources are located on one or more servers.
- B.
  
  Client-server networks are NOT commonly used by businesses.
- C.
  
  Client-server networks can have better performance than a peer-to-peer network because their resources can be located on dedicated servers rather than on a PC running a variety of end-user applications.
- D.
  
  The diagram below represents a client-server network.
- E.
  
  The diagram below represents a client-server network.
8.

Which of the following is NOT a layer of the Open Systems Interconnect (OSI) reference model?
- A.
  
  Physical Layer
- B.
  
  Data Link Layer
- C.
  
  Presentation Layer
- D.
  
  Internet Access Layer
9.

What layers of the OSI correspond to labels A and B?
- A.
  
  A is session layer and B is application.
- B.
  
  A is session layer and B is Physical.
- C.
  
  A is Host-to-Host layer and B is Internet access layer.
- D.
  
  A is session layer and B is data-link layer.
10.

The term packet is used fairly generically to refer to a protocol data unit (PDU). However, a PDU might have additional names based on its OSI layer. What is the name of the PDU in the physical layer of the OSI reference Model?
- A.
  
  Segmen
- B.
  
  Packet
- C.
  
  Bits
- D.
  
  Frames
11.

Which of the following matching is true concerning the Protocol Data Unit (PDU) and its corresponding OSI layer location?
- A.
  
  1A, 2B, 3C, 4D, 5E
- B.
  
  1D, 2A, 3E, 4B, 5C
- C.
  
  1D, 2E, 3C, 4B, 5A
- D.
  
  1D, 2C, 3E, 4B, 5A
12.

Which of the following layers of the OSI reference model is primarily concerned with forwarding data based on logical addresses?
- A.
  
  Data Link Layer
- B.
  
  Physical Layer
- C.
  
  Network Layer
- D.
  
  Presentation Layer
13.

Switching is associated with Layer 2 (data link layer) and Layer 3 (network layer)
- A.
  
  True
- B.
  
  False
14.

Which of the following transport layer protocol of the OSI reference model is a connection-oriented protocol that provides reliable transport between two communicating hosts?
- A.
  
  User datagram Protocol (UDP)
- B.
  
  Transport Control Protocol (TCP)
- C.
  
  Internetwork Packet Exchange (IPX
- D.
  
  Transmission Control Protocol (TCP)
15.

Which of the following protocol to TCP port matching is correct?
- A.
  
  ftp 20 and 21, SSH 22, Telnet 23, SMTP 25, DNS 53, HTTP 80
- B.
  
  Ftp 20 and 23, SSH 22, Telnet 25, SMTP 25, DNS 53, HTTP 80
- C.
  
  Ftp 20 and 21, SSH 22, Telnet 25, SMTP 23, DNS 53, HTTP 80
- D.
  
  Ftp 20 and 21, SSH 23, Telnet 25, SMTP 25, DNS 80, HTTP 53
16.

Which OSI reference model layer is responsible for?(a) Setting up a session(b) Maintaining a session(c) Tearing down a session
- A.
  
  Session Layer (Layer 5)
- B.
  
  Data-Link Layer (Layer 2)
- C.
  
  Presentation Layer (Layer 6)
- D.
  
  Transport Layer (Layer 4)
17.

At layers above the Physical layer in the OSI Reference Model, bits are grouped together into a Protocol Data Unit (PDU)
- A.
  
  True
- B.
  
  False
18.

Which two types of media are twisted-pair cable?
- A.
  
  RJ-11 and RJ-45
- B.
  
  STP and UTP
- C.
  
  RG-59 and RG-58
- D.
  
  MMF and SMF
19.

How fast can category 5e transfer data?
- A.
  
  1000 mbps
- B.
  
  10 mbps
- C.
  
  100 mbps
- D.
  
  10 gbps
20.

In the diagram below match the fiber connector on the left with the correct description on the right
- A.
  
  A2, B1, C3, D4
- B.
  
  A3, B2, C4, D3
- C.
  
  A1, B2, C3, D4
- D.
  
  A3, B2, C4, D1
21.

What are the steps a DHCP client goes through when requesting an IP address? Make sure they are in the correct order.
- A.
  
  DHCPDISCOVER, DHCPREQUEST, DHCPOFFER, DHCPACK
- B.
  
  DHCPOFFER, DHCPDISCOVER, DHCPREQUEST, DHCPACK
- C.
  
  DHCPDISCOVER, DHCPOFFER, DHCPREQUEST, DHCPACK
- D.
  
  DHCPACK, DHCPDISCOVER, DHCPREQUEST, DHCPOFFER
22.

What is the purpose of a DNS server?
- A.
  
  Routing packets to the Internet
- B.
  
  Connecting devices at Layer 2 of the OSI
- C.
  
  Providing an IP address for an Fully Qualified Domain Name
- D.
  
  Blocking packets from the Internet
23.

The more twists per foot in a pair of wires, the more resistant the pair will be to ____.
- A.
  
  Throughput
- B.
  
  Attenuation
- C.
  
  Cross talk
- D.
  
  Latency
24.

____ describes wiring that connects workstations to the closest telecommunications closet
- A.
  
  Backbone wiring
- B.
  
  Horizontal wiring
- C.
  
  Work area
- D.
  
  Simple wiring
25.

Modern LANs use ____ or higher wiring.
- A.
  
  Cat 3
- B.
  
  Cat 5
- C.
  
  Rg-6
- D.
  
  Rg-59