ANIMAL CELL CULTURE AND REGULATION QUIZ

You have the following routing table. Which of the following networks will not be placed in the neighbor routing table?R 192.168.30.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0C 192.168.40.0/24 is directly connected, Serial0 172.16.0.0/24 is subnetted, 1 subnetsC 172.16.30.0 is directly connected, Loopback0R 192.168.20.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0R 10.0.0.0/8 [120/15] via 192.168.40.1, 00:00:07, Serial0C 192.168.50.0/24 is directly connected, Ethernet0

172.16.30.0

10.0.0.0

All of them will be placed in the neighbor routing table

192.168.30.0

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Modulation is the process of

converting digital signals to analog signals

performing data encryption.

Multiplexing various signals into high speed line signals

converting analog signals to digital signals

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Which protocol is used to send a destination network unknown message back to originating hosts?

ICMP

ARP

TCP

BootP

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Which class of IP address provides a maximum of only 254 host addresses per network ID?

Class A

Class D

Class C

Class B

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The synchronous modems are more costly than the asynchronous modems because

they transmit the data with stop and start bits.

None of these

they produce large volume of data

they contain clock recovery circuits

they operate with a larger bandwidth

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What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

The administrator is pinging from the interface.

The keepalives are different times.

The administrator has the interface shut down.

No cable is attached.

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You have been contracted to install a windows NT network in an office that is located in a strip mall. The office is located next to the power plant of the building, so a UPS (uninterruptible power supply) has already been installed. What type of cable should you use for the network cabling? Choose the best answer.

Fiber-optic

TI

UTP

STP

PSTN

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If an Ethernet port on a router were assigned an IP address of 172.16.112.1/25, what would be the valid subnet address of this host?

172.16.96.0

172.16.0.0

172.16.255.0

172.16.112.0

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On a class B network, how many subnets are available with a subnet mask of 248?

6

30

126

2

62

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Why does the data communication industry use the layered OSI reference model?1. It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.2. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.3. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers.4. It encourages industry standardization by defining what functions occur at each layer of the model.

1 only

1 and 4

2 and 3

3 only

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