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 CCNA Questions

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Q:

What is the subnet for host ID 10.16.3.65/23?

Answer

A/23 is 255.255.254.0. The third octet is a block size of 2.0, 2, 4. The subnet is in the 16.2.0 subnet; the broadcast address is 16.3.255

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Subject: CCNA - CISCO Certification

24 15698
Q:

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

A) Class A B) Class B
C) Class C D) Class D
 
Answer & Explanation Answer: C) Class C

Explanation:

Class C network address has only 8 bits for defining hosts : 28-2 = 256 - 2 = 254

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Filed Under: CCNA - CISCO Certification
Job Role: Analyst , IT Trainer , Project Manager

22 22380
Q:

The network address of 172.16.0.0/19 provides how many subnets and hosts?

A) 7 subnets, 2046 hosts each B) 7 subnets, 8190 hosts each
C) 8 subnets, 2046 hosts each D) 8 subnets, 8190 hosts each
 
Answer & Explanation Answer: D) 8 subnets, 8190 hosts each

Explanation:

A CIDR address of/19 is 255.255.224.0. This is a Class B address, so that is only 3 subnet bits, but it provides 13 host bits, or 8 subnets, each with 8,190 hosts.

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Filed Under: CCNA - CISCO Certification

22 22785
Q:

At which layer is routing implemented , enabling connections and path selection between two end systems?

Answer

The Network layer provides routing through an internetwork and logical addressing.

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Subject: CCNA - CISCO Certification

12 8070
Q:

Which layer defines how data is formatted , presented, encoded, and converted for use on the network?

Answer

The presentation layer makes sure that data is in a readable format for the Application layer.

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Subject: CCNA - CISCO Certification

11 5899
Q:

Which layer combines bits into bytes and bytes into frames, uses MAC addressing , and provides error detection?

Answer

The Data Link layer is responsible for the framing of data packets.

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Subject: CCNA - CISCO Certification

10 7621
Q:

Which OSI layer defines the standards for cabling and connectors?

A) Layer 1 B) Layer 4
C) Layer 7 D) Layer 3
 
Answer & Explanation Answer: A) Layer 1

Explanation:

OSI layer 1 defines the standards for cabling and connectors.

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Filed Under: CCNA - CISCO Certification
Job Role: Network Engineer

10 6317
Q:

If a switch has three computers connected to it, with no VLANs present, how many broadcast and collision domains is the switch creating?

A) Three broadcast and one collision B) Three broadcast and three collision
C) one broadcast and three collision D) One broadcast and one collision
 
Answer & Explanation Answer: C) one broadcast and three collision

Explanation:

If a switch has three computersconnected to it, with no VLANs present , one broadcast and three collision domains are created.

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Filed Under: CCNA - CISCO Certification

9 16968