Quiz Ch 3, 4

Which network component connects a device with the transmission media and allows it to send and receive messages?

Network Interface Card

What is the proper format of a MAC address?

00-00-00-00-00-00(- can also be replaced with .)

A host wants to send a message to another host with the IP address 115.99.80.157. IP does not know the hardware address of the destination device. What protocol can be used to discover the MAC address?

ARP

What type of module might a switch use to allow it to modify the media type supported by a switch port?(2 answers)

SFP, GBIC

Which OSI model layer does a media converter operate?

Layer 1

You have a server that has a 100BaseFX network interface card that you need to connect to a switch. The switch only has 100BaseTX ports.

Media converter

Which of the following is true about the MAC address?(2 answers)

It is typically represented by hexadecimal numbers. It is a 48 bit address.

Which of the following statements accurately describes how a modem works?(2 answers)

It demodulates analog data from a telephone network into digital PC data. It modulates digital data from the PC into analog data and transmits it on a telephone network.

What device sends signals from a computer onto a network?

Transceiver

Which of the following devices is used on a LAN and offers guaranteed bandwidth to each port?

Switch

An 8-port switch receives a frame on port number. The frame is addressed to an unknown device. What will the switch do?

Send the frame out ports 2-8

Which of the following devices operate at the OSI model layer 2?(2 answers)

Network Interface Card, Switch

Which of the following devices is used on a LAN and offers guaranteed bandwidth to each port?

Switch

Your company purchases a new bridge, which filters packets based on the MAC address of the destination computer. On which layer of the OSI model is the device functioning?

Data Link

An access point that conforms to the IEEE 802.11b standard acts most closely to what other networking device?

Hub

A switch is associated with which OSI model layer?

Data Link

Which of the following best describes how a switch functions?

It connects multiple cable segments (or devices) and forwards frames to the appropriate segment.

At which layer of the OSI model do hubs operate?

Physical

How do switches and bridges learn where devices are located on a network?

When a frame enters a port, the source MAC address is copied from the frame header.

Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents?(2 answers)

Repeater, Hub

What are three devices that operate at the Data Link layer of the OSI model?

Switches, Network Interface Cards, Bridges

At which of the following OSI layers does a router operate?

Layer 3

Which of the following is the best device to deploy to protect your private network from a public untrusted network?

Firewall

Which of the following hardware devices links multiple networks and directs traffic between networks?

Router

Name two tasks that routers perform.

Maintain information about paths through an internetwork. Route data based on logical network addresses

You are the administrator of a company’s network. You want to prevent unauthorized access to your intranet from the internet. Which of the following should you implement?

Firewall

At what OSI layer does a router operate to forward network messages?

Network

You are the network administrator for a small organization. Recently, you contacted an ISP to connect your organization’s network to the internet to provide users with internet access. Since doing so, it has come to your attention that an intruder has invaded your network on three separate occasions. What type of network hardware should you implement to prevent this from happening again?

Firewall

Which of the following physical topologies are used with Ethernet networks?(2 answers)

Bus, Star

A network is connected following the IEEE 802.3 specifications. Which of the following best describes when a device can transmit messages?

The device listens to determine if the transmission media is free.

Which of the following connectors is used with Ethernet 10BaseT networks?

RJ-45

The media access control method of all Ethernet networks is

CSMA/CD

Which of the following use the CSMA/CD access method?(2 answers)

1000BaseT, 10BaseT

You want to implement an Ethernet network at very long distances using fiber optic cables. Which standard and cable type would you choose?(2 answers)

1000BaseLX, 1000BaseSX

You have been tasked with designing a high-speed Ethernet network. Your client’s building already has 150ohm shielded twisted pair wiring installed. Due to budget constraints, they have asked you to reuse the existing wiring instead of installing new fiber optic cabling. Which Ethernet standard could you implement in this situation?

1000BaseCX

Your network follows the 100BaseTx specifications for Fast Ethernet. What is the maximum cable segment length allowed?

100 meters

Which of the following Ethernet standards uses fiber-optic cabling?(2 answers)

100BaseFX, 1000BaseLX

You have been tasked with designing an Ethernet network. Your client needs to implement a very high-speed network backbone between campus buildings; some of which are around 300 m apart. Multimode fiber-optic cabling has already been installed between buildings. Your client has asked that you use the existing cabling. Which Ethernet standard meets these guidelines?(2 answers)

1000BaseSX, 10GBaseSR

Which of the following are requirements of the 1000BaseT Ethernet standards?(3 answers)

CAT 5e cabling, RJ-45 connectors, The cable length must be less than or equal to 100m

Which Gigabit Ethernet standard uses multimode fiber-optic cabling and supports network segments up to a maximum of 550 m long?

1000BaseSX

What type of cabling is used with 100BaseTX Fast Ethernet networks?

Type 1A STP or Category 5 UTP

What is the minimum cable specification that supports 1000 Mbps Ethernet?

Cat 5

What topology is used with 100BaseTX Fast Ethernet networks?(2 answers)

Physical star/logical bus, Physical star/logical star

Which Gigabit Ethernet standard can support long network segments up to a maximum of 5 km when used with single mode fiber-optic cable?

1000BaseLX

Ethernet 100BaseFX networks use what type of cabling?

Fiber-optic

Your network follows the 100BaseFX specifications for Fast Ethernet, and uses half-duplex, multimode cable. What is the maximum cable segment length allowed?

412 meters

Which of the following standards is used by SONET?

10GBaseLW

You are planning a network for an educational campus. Due to the size of the buildings and the distance between them, you have elected to use 10BaseFL hubs, cabling, and network interface cards. What is the maximum length for the network cable between a workstation and a hub?

2000 meters

With an Ethernet 10BaseT network, the maximum cable length between a computer and the hub is:

100 meters

You would like to implement 10 Gbps Ethernet over a distance of 1 km or greater. Which of the following would be the minimum requirement for the implementation?(2 answers)

10GBaseLR standards, Single mode fiber

Which of the following standards is typically used in a rollover cable?

RS-232

You need to connect to a workstation to a switch using a regular port on the switch (not an uplink port). The switch does not support auto-MDI. Which type of cable should you use?

Straight through

Which of the following connectors is typically used on one end of a rollover cable?

Serial

You need to transfer data from one laptop to another and would like to use an Ethernet cable. You do not have a hub or a switch. Which type of cable should you use?

Crossover

You want to connect the LAN port on a router to the uplink port on a switch. The switch does not support auto-MDI. Which type of cable should you use?

Crossover

You want to create a rollover cable that has an RJ-45 connector on both ends. How should you connect the wires within the connectors?

Connect pin 1 to pin 8, pin 2 to pin 7, pin 3 to pin 6, and pin 4 to pin 5

You have two switches that you need to connect using their uplink ports. The switches do not support auto-MDI. Which type of cable should you use?

Crossover

You have purchased a new router that you need to configure. You need to connect a workstation to the router’s console port to complete the configuration tasks. Which type of cable would you most likely use?

Rollover.

What is the main difference between RIP and RIP2?

RIP uses classful protocol, while RIP2 is classless protocol.

You have a private network connected to the internet. Your routers will not share routing information about your private network with Internet routers. Which of the following best describes the type of routing protocol you would use?

IGP

Which of the following routing protocols divides the network into areas, with all networks required to have an area 0 (area 0 identifying the backbone area)?

OSPF

You have a network configured to use the OSPF routers have learned about all other routes in the network?

convergence

Which of the following protocols has a limit of 15 hops between any two networks

RIP

You have a router configured to share routing information using RIP. In addition, you have a single static route that identifies a default route for all other networks?

Manually reconfigure the default route to point to the new next hop router.

Which of the following is a characteristic of static routing when compared to dynamic routing?

All routers must be manually updated on the router.

What information does the next hop entry in a routing table identify?

The first router in the path to the destination network.

Which of the following routing protocols are classified as a link state routing protocols?

IS-IS, OSPF

What are the main differences between the OSPF and IS-IS routing protocols?

OSPF requires an area 0, while IS-IS does not.

Which of the following best describes OSPF?

ospf is a classless link-state routing protocol

A router is connected to a network 192.169.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. The router is also configured with a static route of 0.0.0.0 with a mask of 0.0.0.0. The router receives a packet addressed to the network 10.1.0.0/16. What will the router do with the packet.

Forward the packet to the next hop router specified by the route network 0.0.0.0

You manage a server that uses an IP address of 192.168.255.188 with a mask of 255.255.0.0 Which of the following describes the address type?

Classless

Which of the following routing protocols is used by routers on the Internet for learning and sharing routes?

BGP

Which of the following terms are often synonymous with or made possible with CIDR?

Classless, VLSM

Under which of the following circumstances might you implement BGP on your company network and share routes with Internet routers?

If the network is connected to the Internet using multiple ISPs.

Which of the following statements about RIP is true?

RIP uses hop counts as the cost metric.

A router is connected to network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24.

Wait for convergence to take place.

A router is connected to a network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. There is no default route on router. The router receives a packet addressed to network 10.1.0.0/16. What will the router do with the packet?

Drop the packet.

Which of the following protocols is classified as a balanced hybrid routing protocol?

EIGRP

You have a computer that is connected to the internet through a NAT router. You want to use a private addressing scheme for your computer. Which of the following IP addresses could you assign to the computer? (Three answers)

10.0.12.15, 192.168.12.253, 172.18.188.67

Which of the following is not one of the ranges of IP addresses defined in RFC 1918 that are commonly used behind a NAT server?

169.254.0.1-169.254.255.254

Your computer has an IP address of 161.13.5.15. Your computer is on a:

Public network

Which organization is responsible for allocating public IP addresses?

IANA

Which of the following IP addresses is a valid IP address for a host on a public network?

142.15.6.1

You have a small network at home that is connected to the internet. On your home network you have a server with the IP address of 192.168.55.199/16. YOu have a single public address that is shared by all hosts on your private network. You want to configure the server as a web server and allow internet hosts to contact the server to browse a personal web site. What should you use to allow access?

Static NAT

Which of the following associates a port number with a host on a private network?

PAT

You have a small network athome tht is connected to the Internet. On your home network yu have a server with the IP address of 192.168.55.199/16. All computers on your homenetwork can connect to the internet. From your work office, you try to access your home computer using it’s IP address, but are unable to communicate with the server. You are able to connect to other hosts on the Internet. Why can’t you access the server?

Private addresses are not accessible through the internet.

Which of the following is a valid IPv6 address?

FEC0::AB:9007

Which of the following are valid IPv6 addresses. (Two answers)

6384:1319:7700:7631:446A:5511:8940:2552, 141:0:0:0:15:0:0:1

Which type of address is the IP address 198.162.12.254/24?

Unicast

Which type of address is used in a packet to address the packet to a single host?

Unicast

Which type of address is the IP address is the IP address 232.111.255.250?

Multicast

Which protocol does an IP host use to inform a router that it wants to receive specific multicast frames?

IGMP

Which of the following address types is shared by multiple hosts, and is used to form groups of computers that should receive the same data stream?

Multicast

Which of the following protocols are used with VoIP (Two answers)

SIP, RTP

Which of the following features is used with digital IP phones to supply power through a switch port?

PoE

Which of the following protocols is used by VoIP to set up, maintain, and terminate a phone call?

SIP

Which component is most likely to allow physical and virtual machines to communicate with each other?

Virtual switch

What type of virtualization completely simulates a real physical host?

Full virtualization

In virtualization, what is the role hypervisor?

A hypervisor allows virtual machines to interact with the hardware without going through the host operating system.

You need to provide DHCP and file share services to a physical network. These services should be deployed using virtualization. Which type of virtualization should you implement?

Virtual servers

All of the 802.11 standards for the wireless networking support which type of communication path sharing technology?

CMSA/CA

Which of the following are frequencies defined 802.11 committees for wireless networking? (select 2)

2.4 GHz, 5.75GHz

What is the frequency of 802.11a networking?

5.75GHz

How many total channels are available for 802.11g wireless networks?

11

You have been contacted by OsCorp to recommend a wireless Internet solution. The wireless strategy must support transmission range of 150 ft, use a frequency range of 2.4GHz, and provide the highest possible transmission speeds. Which of the following wireless solutions would you recommend?

802.11g

Which IEEE wireless standards specify transmission speeds up to 54Mbps?(Select 2)

802.11a, 802.11g

You are designing a wireless network for a client. Your client needs the network to support a data rate of at least 54Mbps. In addition, the client already has a wirelesss telephone system installed that operates 2.4GHz. Which 802.11 standard will work best in this situation?

802.11a

You are designing an update to your clients wireless network. The existing wireless network uses 802.11b equipement; which your client complains runs to slowly. Due to budget constraints she wants to upgrade only the wireless access points in the network this year. Next year, she will upgrade the wireless network boards in her users’ workstations. She has also indicated that the system must continue to function during the transition period. Which 802.11 standard will work best in this situation?

802.11g

Which data transmission rate is defined by the IEEE 802.11b wireless standard?

11 Mbps

How many total channels are avaible for 802.11a wireless networks?

23

Which IEEE standard describes wireless communication?

802.11b

You need to add security for your wireless network. You would like to use the most secure method. Which method should you implement?

WPA2

Which of the following wireless security methods uses a common shared key configured on the wireless access point and all wireless client?

WEP, WPA, Personal, and WPA2 Personal

You want to implement 802.1x authentication on your wireless network. Where would you configure passwords that are used for authentication?

On a RADIUS server

Which of the following specifications identify security that can be added to wireless networks?

802.1x, 802.11i

What encryption method is used by WPA for wireless networks?

TKIP

You want implement 802.1x authentication on your wireless network. Which of the following will be required?

RADIUS

Which of the following protocols or mechanisms is NOT used to provide security on a wireless network?

RDP

On wireless networks, which technology is employed to provide the same type of protection that cables provide on a wired network?

WEP

On a wireless network that is employing WEP, which type of users are allowed to authenticate through the access points?

Users with the correct WEP key

You have a small home wireless network that uses WEP. The access point is configured as the DHCP server and a NAT router that connects to the Internet. You do not have a RADIUS server. Which authentication method should you choose?

Open