Examen redes capitulos 4 y 5

On an Ethernet switched network, what address does one host computer use to communicate with another?

MAC address

Which of the following can run full-duplex and achieve 200 MBPS with CAT 5e cable?

100BaseTX

How many devices in a collision domain have to listen when a single host talks?

ALL

If you are using a cable medium called 10Base2, what does this mean?

That you’re using thinnet coax for your LAN medium

What network access control method helps devices share the bandwith evenly without having two devices transmit at the same time on the network medium? (two)

CSMA/CD & CSMA/CA

What is the maximum distance of 10GBaseSR?

302 meters (990 feet)

How many wire paira are used with half-duplex?

one

How many wire pairs are used with 100BaseTX full-duplex?

Two

what is the maximum distance of 10GBaseLR?

6 miles

what is the effective total throughput increase with a full-duplex connection?

twice as much

What device can you not use full-duplex communication with?

Hub

what is the decimal equivalent of this binary number: 11000000.10101000.00110000.11110000

192.168.48.240

Which IEEE standard is used for Ethernet over power lines?

802.3p

How is the decimal value 10 represented in binary?

1010

What is the decimal value for the binary number 11101000

232

What is the decimal number 10 in hexadecimal

A

How many bits is a MAC address

48

What is the maximum distance of 1000BaseT

100 meters (328 feet)

what is the purpose of the frame check sequence (FCS) in an Ethernet frame?

Error detection

What does the Base mean in 100BaseTx?

Baseband

Which of the following is not a term used when making SOHO Internet connections?

IDS/IPS

What advantage does a dwitch have over a hub?

It recognizes frame boundries and destination MAC addresses of incoming frames

Which device is used to segment a network

Switch

What is the primary function of a bridge?

Breaks up collision domains

A network device that is used to connect multiple devices together without segmenting a network is a

Hub

Which of the following is among the benefits of a switch?

Provides extra bandwidth

Which of the following devices can work at both layers 2 and 3 of the OSI model?

Multilayer switch

What is an advantage of using DHCP in a network environmetn

Assigns IP address to hosts

What is an dvantage of using DHCP in a network environment

Assigns IP address to hosts

What is a benefit of a multilayer switch (MLS) over a layer 2 switch

Routing functions

Which device should be used if you need to send incoming packets to one or more machines that are hidden behind a single IP address?

Load balancer

What rol does the A record in a Domaiin Name Service (DNS) server have in your network?

Translates human name to IP address

Which device does not aid in network segmentation?

Hub

What is the most common use for web proxy?

Web cache

Which is not an dvantage of network segmentation

Preventing broadcast storms

Users arrive at the office after a weekend and the hosts that were shut down over the weekend are restarted but cannot access the LAN or Internet.Hosts that were not shut down are working fine.Where can the problem be?

The DHCP server

You need a device that can prevent your users from accessing certain websites.Which device should you install?

Proxy server

which device creates separate collision domains and a single broadcast domain

Switch

Which of the following is not an dvantage of using appliances to offload services like encryption and content filtering

Less expensive

Which type of server in your network uses pointer and A records?

DNS server

Users on your network are saturating your bandwidth because they are using too many non-work-related sites.What device would limit the availability of the types of sites that users on a LAN have access to while providing granular control over traffic between the local LAN and the Internet

Proxy Server