FREE COMPUTERS AND STUDY GAMES ABOUT CISCO

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FREE COMPUTERS AND STUDY GAMES ABOUT CISCO

CCNA EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -127 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What is the address range for a class B IP address?

Answer:

128-191

Question 2: What is VCI?

Answer:

Virtual Circuit Identifier (used in Cell switching with ATM)

Question 3: EIA-232-D

Answer:

Defines Asynchronous serial connections - OSI Layer 1

Question 4: 7 Layers of the OSI Model

Answer:

Physical, Data Link, Network, Transport, Session, Presentation, Application

Question 5: What are the two WAN link options

Answer:

Dedicated (Leased lines such as T1,T3,E1,E3)0 Switched (circuit switched, packet switched, cell switched)

Question 6: What are the parts of the UDP header?

Answer:

Source Port (16 bit) Destination Port (16 bit) UDP Length (16 bit) UDP checksum (16 bit) Data (level 5-7 data)

Question 7: Cut-through

Answer:

Read the destination device address.Forward the packet without verifying frame integrity.Are faster than store-and-forward switches (less latency).

Question 8: Cat5

Answer:

Rated Up to 100 Mbps Question 9: How many bits are in the Vendor assigned portion of the Mac address?

Answer:

24 bits

Question 10: UDP Protocol

Answer:

Operates at the transport layer Provides sockets based connectivity with connection limitations Connectionless protocol Limited error checking Uses best effort delivery No recovery features

Question 11: How many bytes are in the data portion of a frame?

Answer:

46-1500 bytes

Question 12: Collision detection is turned on

The device can only send or receive at any given time Devices connected to a hub must use half-duplex communication

Answer:

Half Duplex

Question 13: Most common transmission medium used for Ethernet

Answer:

Unshielded twisted-pair cables (UTP) with RJ-45 connectors

Question 14: 10Base2, 10Base5, 10BaseT

Answer:

Ethernet Standards

Question 15: Bits

Answer:

Bits reside at the physical level of the OSI model

Question 16: Point to point connection disadvantages

Answer:

Cost Limited Flexibility

Question 17: What is the 5 4 3 rule?

Answer:

Can not have more than 5 segments with 4 repeaters and 3 segments populated Question 18: Used when the pins on each endpoint use different pins to send and receive data

Answer:

Straight-through cable

Question 19: What is the three way handshake for TCP?

Answer:

Syn Syn/Ack Ack

Question 20: ISDN

Answer:

Communication protocols that allow telephone networks to carry voice, data,graphics, music and video - OSI Layer 1-3

Question 21: What is NAT?

Answer:

Network Address Translation without the translation of ports.

Question 22: What layers of the OSI model do WAN technologies run on?

Answer:

Layers 1 and 2

Question 23: How many bits in the OUI of the Mac address

Answer:

22 bits

Question 24: In routing, what is the administrative distance number for EIGRP?

Answer:

90

Question 25: How many bytes in the preamble portion of a ethernet frame?

Answer:

• bytes

Question 26: Process layer

Answer:

TCP/IP Suite layer also called the Application Layer