161⟩ How ARP brings MAC address for switch?
Through Broadcast
CCNA
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“Cisco Certified Network Administrators guide for getting job in Networking department. This guide will help you to get preparation of CCNA Interview.”
214 CCNA Questions And Answers
162⟩ What is Subnetting? Why is it used?
Used in IP Networks to break up larger networks into smaller subnetworks. It is used to reduce network traffic, Optimized network performance, and simplify management i.e. to identify and isolate network problems.
163⟩ How many collision domains are in switch?
Equal number of ports
164⟩ What will be the prefix length of 224 in VLSM?
27 (carry 3 bits from host (128+64+16=224) and add in network ports (24+3=27) )
165⟩ How many valid IP will b in /21 in route Summarization?
1044
166⟩ In which protocol you manually enable route summarization?
OSPF
167⟩ In which protocol supenetting is enable by default?
RIPv2 and EIGRP
168⟩ What is MAC address size of IPv6?
64 bits
169⟩ Which mathematically form used inIPv6?
Hexadecimal
170⟩ What is quality of IPv6?
a) Router processing will rapid because field size wills 8 bytes (but in IPv4 it was 12 byres)
b) No Fragmentation
c) No Checksum
171⟩ Define Network?
Communication, Resource sharing and Media (When multiple host share their resources with each other OR when multiple devices connect with each other for resource sharing )
172⟩ Explain Types of communication in IPv4?
Unicast, Multicast and Broad cast
173⟩ Types of Resource Sharing?
Intranet , Extranet and Internet .
174⟩ What is Collision?
When signal hits each other, collision accord.
175⟩ Which Type of Transmission Bus Topology Support?
Half Duplex
176⟩ What is the difference between half duplex and full duplex?
In half duplex, sender should b one. In full duplex, sender can be multiple.
177⟩ Which way of communication bus topology use?
Broadcast
178⟩ If there is only 2 Host in Bus Topology is that possible collision accord?
Yes, because end terminal will not absorb signals. Signal will be bounce back and collision will accord.
179⟩ What is RAID in ccna?
A method used to standardize and categorize fault-tolerant disk systems. RAID levels provide various mixes of performance, reliability, and cost. Some servers provide three of the RAID levels: Level 0 (striping), Level 1 (mirroring), and Level 5 (striping & parity).
180⟩ What is loop back IP in IPV6?
::1 and ping 6
