CCENT Test002
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CCENT/CCNA ICND1 Chapters 2 + 3
- 1.Which of the following protocols are examples of TCP/IP transport layer protocols?
- A.
Ethernet
- B.
UDP
- C.
IP
- D.
TCP
- E.
HTTP
- 2.Which of the following protocols are examples of TCP/IP network access layer protocols?
- A.
UDP
- B.
Ethernet
- C.
PPP
- D.
TCP
- E.
HTTP
- 3.The process of HTTP asking TCP to send some data and make sure that it is received correctly is an example of what?
- A.
Same-layer interaction
- B.
Adjacent-layer interaction
- C.
The OSI model
- D.
All the other answers are correct
- 4.The process of TCP on one computer marking a segment as segment 1, and the receiving computer then acknowledging the receipt of segment 1, is an example of what?
- A.
Data encapsulation
- B.
Same-layer interaction
- C.
Adjacent-layer interaction
- D.
The OSI model
- E.
None of these answers are correct
- 5.The process of a web server adding a TCP header to a web page, followed by adding an IP header, and then a data link header and trailer is an example of what?
- A.
Data encapsulation
- B.
Same-layer interaction
- C.
The OSI model
- D.
All of these answers are correct
- 6.Which of the following terms is used specifically to identify the entity that is created when encapsulating data inside data link layer headers and trailers?
- A.
Data
- B.
Chunk
- C.
Segment
- D.
Frame
- E.
Packet
- 7.Which OSI layer defines the functions of logical network-wide addressing and routing?
- A.
Layer 1
- B.
Layer 2
- C.
Layer 3
- D.
Layer 4
- E.
Layer 6
- 8.Which OSI layer defines the standards for cabling and connectors?
- A.
Layer 1
- B.
Layer 2
- C.
Layer 3
- D.
Layer 4
- E.
Layer 7
- 9.Which OSI layer defines the standards for data formats and encryption?
- A.
Layer 1
- B.
Layer 2
- C.
Layer 4
- D.
Layer 6
- E.
Layer 7
- 10.Which of the following terms are not valid terms for the names of the seven OSI layers?
- A.
Application
- B.
Data link
- C.
Transmission
- D.
Presentation
- E.
Internet
- 11.Which of the following is true about the cabling of a typical modern Ethernet LAN?
- A.
Connect each device in series using coaxial cabling
- B.
Connect each device in series using UTP cabling
- C.
Connect each device to a centralized LAN hub using UTP cabling
- D.
Connect each device to a centralized LAN switch using UTP cabling
- 12.Which of the following is true about the cabling of a 10BASE2 Ethernet LAN?
- A.
Connect each device in series using coaxial cabling
- B.
Connect each device in series using UTP cabling
- C.
Connect each device to a centralized LAN hub using UTP cabling
- D.
Connect each device to a centralized LAN switch using UTP cabling
- 13.Which of the following is true about Ethernet crossover cables?
- A.
Pins 1 and 2 are reversed on the other end of the cable.
- B.
Pins 1 and 2 on one end of the cable connect to pins 3 and 6 on the other end of the cable.
- C.
Pins 1 and 2 on one end of the cable connect to pins 3 and 4 on the other end of the cable.
- D.
The cable can be up to 1000 meters long to cross over between buildings.
- E.
E.None of the other answers is correct.
- 14.Each answer lists two types of devices used in a 100BASE-TX network. If these devices were connected with UTP Ethernet cables, which pairs of devices would require a straight-through cable?
- A.
PC and router
- B.
PC and switch
- C.
Hub and switch
- D.
Router and hub
- E.
Wireless access point (Ethernet port) and switch
- 15.Which of the following is true about the CSMA/CD algorithm?
- A.
The algorithm never allows collisions to occur.
- B.
Collisions can happen, but the algorithm defines how the computers should notice a collision and how to recover.
- C.
The algorithm works with only two devices on the same Ethernet.
- D.
None of the other answers is correct.
- 16.Which of the following is a collision domain?
- A.
All devices connected to an Ethernet hub
- B.
All devices connected to an Ethernet switch
- C.
Two PCs, with one cabled to a router Ethernet port with a crossover cable and the other PC cabled to another router Ethernet port with a crossover cable
- D.
None of the other answers is correct.
- 17.Which of the following describe a shortcoming of using hubs that is improved by instead using switches?
- A.
Hubs create a single electrical bus to which all devices connect, causing the devices to share the bandwidth.
- B.
Hubs limit the maximum cable length of individual cables (relative to switches)
- C.
Hubs allow collisions to occur when two attached devices send data at the same time.
- D.
Hubs restrict the number of physical ports to at most eight.
- 18.Which of the following terms describe Ethernet addresses that can be used to communicate with more than one device at a time?
- A.
Burned-in address
- B.
Unicast address
- C.
Broadcast address
- D.
Multicast address
- 19.Which of the following is one of the functions of OSI Layer 2 protocols?
- A.
Framing
- B.
Delivery of bits from one device to another
- C.
Error recovery
- D.
Defining the size and shape of Ethernet cards
- 20.Which of the following are true about the format of Ethernet addresses?
- A.
Each manufacturer puts a unique code into the first 2 bytes of the address.
- B.
Each manufacturer puts a unique code into the first 3 bytes of the address.
- C.
Each manufacturer puts a unique code into the first half of the address.
- D.
The part of the address that holds this manufacturer's code is called the MAC.
- E.
The part of the address that holds this manufacturer's code is called the OUI.
- 21.Which of the following is true about the Ethernet FCS field?
- A.
It is used for error recovery.
- B.
It is 2 bytes long.
- C.
It resides in the Ethernet trailer, not the Ethernet header.
- D.
It is used for encryption.
- E.
None of the other answers is correct.
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