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Chapter 1 - Networking Devices, Technologies and Models

Descripción

✓ Recognizing the purpose of networking services such as DHCP, DNS, NAT, and authentication services ✓ Understanding the difference between hubs, bridges, switches, and routers ✓ Understanding the OSI model and what devices and protocols run at each layer of the OSI model ✓ Knowing when to use a straight-through cable or a crossover cable ✓ Understanding the difference between a collision domain and a broadcast domain
Kessi Silva
Test por Kessi Silva, actualizado hace más de 1 año
Kessi Silva
Creado por Kessi Silva hace alrededor de 7 años
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Resumen del Recurso

Pregunta 1

Pregunta
Your manager asks you which service is responsible for translating the source IP address of a packet to the IP address of the public interface on the router.
Respuesta
  • DHCP
  • NAT
  • DNS
  • HTTP

Pregunta 2

Pregunta
You are troubleshooting a communication problem. You seem to be able to communicate with Glen’s website by IP address, but not by the fully qualified domain name (www.gleneclarke.com). What is most likely the problem?
Respuesta
  • DHCP
  • NAT
  • DNS
  • HTTP

Pregunta 3

Pregunta
Which network service can be configured on your router that is responsible for assigning IP addresses to systems on the network?
Respuesta
  • DHCP
  • NAT
  • DNS
  • HTTP

Pregunta 4

Pregunta
What service on the network is responsible for converting the FQDN to an IP address?
Respuesta
  • Authentication server
  • DNS server
  • DHCP server
  • NAT

Pregunta 5

Pregunta
What service on the network is responsible for verifying username and passwords when the user attempts to log on?
Respuesta
  • Authentication server
  • DNS server
  • DHCP server
  • NAT

Pregunta 6

Pregunta
You are monitoring network traffic and you notice a number of DHCP discover messages on the network. Which of the following is the destination address of the DHCP discover message?
Respuesta
  • 0F-1B-3C-2F-3C-2A
  • FF-FF-FF-FF-FF-FF
  • 192.168.4.5
  • 192.168.0.0

Pregunta 7

Pregunta
When a client system boots up and requests an IP address, it first must send out which message?
Respuesta
  • DHCP request
  • DHCP discover
  • DHCP response
  • DHCP ACK

Pregunta 8

Pregunta
What device is responsible for regenerating the signal so that the signal can travel a greater distance?
Respuesta
  • Bridge
  • Router
  • Repeater
  • Switch
  • Hub

Pregunta 9

Pregunta
Which device filters traffic by looking at the destination address of the frame and then forwards the frame to the port that the destination system resides on?
Respuesta
  • Hub
  • Router
  • Repeater
  • Switch

Pregunta 10

Pregunta
Which of the following is a layer-3 device?
Respuesta
  • Bridge
  • Router
  • Repeater
  • Switch
  • Hub

Pregunta 11

Pregunta
A device that can send and receive information, but not at the same time, is said to be _________________.
Respuesta
  • Simplex
  • Full duplex
  • Multicast
  • Half-duplex

Pregunta 12

Pregunta
A message that is sent out on the network and is destined for all systems is known as a __________________ message.
Respuesta
  • Unicast
  • Multicast
  • Full duplex
  • Broadcast

Pregunta 13

Pregunta
A message that is sent out on the network and is destined for a group of systems is known as a ______________ message.
Respuesta
  • Unicast
  • Multicast
  • Full duplex
  • Broadcas

Pregunta 14

Pregunta
A group of systems that can receive one another’s broadcast messages is known as a __________________.
Respuesta
  • Collision domain
  • Active directory domain
  • Fully qualified domain name
  • Broadcast domain

Pregunta 15

Pregunta
You are monitoring network traffic and notice that there is a large number of broadcast messages sent across the wire. You would like to separate your network into multiple broadcast domains. How can you do this? (Select two.)
Respuesta
  • Switch
  • VLANs
  • Router
  • Bridge

Pregunta 16

Pregunta
A group of systems that can have their data collide with one another is known as a ____________________.
Respuesta
  • Broadcast domain
  • VLAN
  • Collision domain
  • Multicast

Pregunta 17

Pregunta
How many broadcast domains and collision domains are there in the diagram below?
Image:
Seleção 004 (binary/octet-stream)
Respuesta
  • 1 broadcast domain and 5 collision domains
  • 2 broadcast domains and 3 collision domains
  • 1 broadcast domain and 3 collision domains
  • 2 broadcast domains and 5 collision domains

Pregunta 18

Pregunta
Sue is having trouble understanding some network concepts and asks you to help identify address types. Which of the following is considered a layer-2 address?
Respuesta
  • 192.168.2.200
  • www.gleneclarke.com
  • COMPUTER1
  • 00-AB-0F-2B-3C-4E

Pregunta 19

Pregunta
You are troubleshooting communication to a network by looking at the link light on the switch. What layer of the OSI model are you troubleshooting when looking at a link light?
Respuesta
  • Application
  • Physical
  • Network
  • Data link

Pregunta 20

Pregunta
What layer of the OSI model is responsible for breaking the data into smaller segments?
Respuesta
  • Data link
  • Physical
  • Network
  • Transport

Pregunta 21

Pregunta
Which of the following is considered a layer-3 address?
Respuesta
  • 192.168.2.200
  • www.gleneclarke.com
  • COMPUTER1
  • 00-AB-0F-2B-3C-4E

Pregunta 22

Pregunta
What layer of the OSI model is responsible for routing and logical addressing?
Respuesta
  • Network
  • Physical
  • Data link
  • Transport

Pregunta 23

Pregunta
Which of the following are considered layer-2 devices? (Choose two.)
Respuesta
  • Bridge
  • Router
  • Repeater
  • Switch
  • Hub

Pregunta 24

Pregunta
Which of the following are considered layer-1 devices? (Choose two.)
Respuesta
  • Bridge
  • Router
  • Repeater
  • Switch
  • Hub

Pregunta 25

Pregunta
What is the application layer protocol for delivering e-mail across the Internet?
Respuesta
  • FTP
  • SNMP
  • SMTP
  • POP3

Pregunta 26

Pregunta
Which layer of the OSI model works with packets?
Respuesta
  • Layer 1
  • Layer 2
  • Layer 3
  • Layer 4

Pregunta 27

Pregunta
What is the application layer protocol for receiving e-mail over the Internet?
Respuesta
  • FTP
  • SMTP
  • SNMP
  • POP3

Pregunta 28

Pregunta
Which Gigabit Ethernet standard uses UTP cabling to reach 1000 Mbps?
Respuesta
  • 1000BaseTX
  • 1000BaseSX
  • 1000BaseCX
  • 1000BaseLX

Pregunta 29

Pregunta
Which 10 Gigabit Ethernet standard uses multimode fiber-optic cabling?
Respuesta
  • 10GBaseLR
  • 10GBaseER
  • 10GBaseSR
  • 1000BaseSX

Pregunta 30

Pregunta
Which of the following addresses does a router use to determine where a packet needs to be delivered? (Choose two.)
Respuesta
  • 24.56.78.10
  • 00-3B-4C-2B-00-AF
  • A layer-3 address
  • A layer-2 address

Pregunta 31

Pregunta
Which layer of the OSI model works with frames?
Respuesta
  • Layer 1
  • Layer 2
  • Layer 3
  • Layer 4

Pregunta 32

Pregunta
What type of cable would you use if you wanted to connect a system to an RJ-45 port on a switch?
Respuesta
  • Fiber
  • Crossover
  • Straight-through
  • Thinnet

Pregunta 33

Pregunta
You wish to network two systems by connecting a computer directly to another computer. Which type of cable would you use?
Respuesta
  • Fiber
  • Crossover
  • Straight-through
  • Thinnet

Pregunta 34

Pregunta
You need to create a crossover cable. What wires would you cross on one of the ends?
Respuesta
  • 1 and 2 with 3 and 4
  • 2 and 4 with 6 and 8
  • 2 and 4 with 5 and 6
  • 1 and 2 with 3 and 6

Pregunta 35

Pregunta
See figure below. You are trying to ping computer B from computer A and are unsuccessful. What is the problem?
Image:
Seleção 005 (binary/octet-stream)
Respuesta
  • The IP address of R1 is on the wrong subnet.
  • The default gateway setting of computer B is incorrect.
  • The default gateway setting of computer A is incorrect.
  • The cable type between the switches and routers is incorrect.
  • The IP address of R2 is on the wrong subnet.
  • The cable type between the computers and switches is incorrect.

Pregunta 36

Pregunta
You are testing communication to a router and have decided to connect your workstation to the Fast Ethernet port of the router. What type of cable would you use?
Respuesta
  • Fiber
  • Crossover
  • Straight-through
  • Thinnet

Pregunta 37

Pregunta
You have a UTP cable that has been configured at both ends with the 568B standard. What type of cable is it?
Respuesta
  • Straight-through
  • Crossover
  • Rollover
  • Coax

Pregunta 38

Pregunta
You wish to create a crossover cable and have wired one end of the cable with the 568A standard, What standard should you use to wire the opposite end of the cable?
Respuesta
  • 568B
  • 568A
  • 569B
  • 569A
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