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Quiz

1/10
On what type of device is a Service Access Point (SAP) defined?
Select the answer
1 correct answer
A.
On the CE device.
B.
On the PE device.
C.
On the P device.
D.
On both CE and PE devices.

Quiz

2/10
You are configuring your Nokia 7750SR Service Router from the Command Line Interface (CLI), and after entering a lengthy command, wish to return directly to the ROOT context. Which control command allows you to do this quickly?
Select the answer
1 correct answer
A.
Ctrl-z
B.
Ctrl-c
C.
Esc
D.
Shift-Page Down

Quiz

3/10
Which of the following best describes a repeater?
Select the answer
1 correct answer
A.
A passive device simply used to connect two or more cables. Does not generate or amplify any signals.
B.
A device that receives and retransmits a signal out its ports, but does not do any Layer 2 analysis of the data.
C.
A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitted.
D.
A device that receives a signal and based on the Layer 3 destination address, makes a decision on which ports the signal should be retransmitted.

Quiz

4/10
How do protocols such as ATM and Frame-Relay support differentiating multiple customers or traffic types on the same physical wire?
Select the answer
1 correct answer
A.
ATM and Frame-Relay are circuit switched protocols and use Virtual Circuits to create logical separation of traffic.
B.
ATM and Frame-Relay are point-to-point protocols and do not support different customers or traffic type on the same physical wire.
C.
ATM and Frame-Relay are circuit switched protocols and use VLAN's to create logical separation of traffic.
D.
ATM and Frame-Relay are circuit switched protocols and use IP Header information to create logical separation of traffic.

Quiz

5/10
Which of the following is a feature of Layer 3?
Select the answer
1 correct answer
A.
Provides an universal addressing scheme
B.
Ensures data is delivered across the Layer 2 network.
C.
Provides reliable data transfers.
D.
Provides a physical interface to the network.

Quiz

6/10
The 201.148.26.0/24 network is subnetted using a /26 mask. How many subnets and host addresses will you obtain with this mask?
Select the answer
1 correct answer
A.
4 subnets, 64 hosts
B.
64 subnets, 4 hosts
C.
4 subnets, 62 hosts
D.
64 subnets, 2 hosts
E.
6 subnets, 30 hosts

Quiz

7/10
What problem was Spanning Tree Protocol (STP) primarily designed to solve?
Select the answer
1 correct answer
A.
Broadcast storms caused by redundancy in Layer 2 networks.
B.
Missing protocol field in the Ethernet header.
C.
Missing sequence number in the Ethernet header.
D.
Unreliable data transfer in Layer 2 networks.

Quiz

8/10
Choose two true statements that characterize Link State Routing
Select the answer
2 correct answers
A.
Routers send a copy of their routing table to their neighbors periodically.
B.
Routers flood link information throughout the entire area.
C.
Network converges quickly (within several seconds) after a topology change.
D.
Routers do not have precise knowledge of the entire network topology.

Quiz

9/10
Which statement accurately explains the purpose of the TCP protocol and what it provides?
Select the answer
1 correct answer
A.
The primary purpose of TCP is to provide reliable communications between application services.
B.
The primary purpose of TCP is to provide unreliable communications between application services
C.
The primary purpose of TCP is to provide IP routing between application services.
D.
The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTML.

Quiz

10/10
Which of the following is the best description of well known ports?
Select the answer
1 correct answer
A.
Well known ports apply to routers only and are used for communication and control traffic. Well known port numbers are assigned by IANA and can have any value.
B.
Well known ports are used by TCP and UDP. Well known port numbers range from 1024 to 65535 and are assigned by IANA.
C.
Well known port numbers are used by both TCP and UDP. Well known port numbers range from 1 to 1023 and are assigned by IANA.
D.
Well known ports numbers are used by TCP only. Well known port numbers are assigned by IANA and can have any value.
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