Basic and Advance Networking ➔ CCNA Job Interview Questions and Answers

Cisco Certified Network Administrators guide for getting job in Networking department. This guide will help you to get preparation of CCNA Interview.

► How many (minimum and maximum) ports are present in a router?
► What is the draw back of OSPF protocol?
► Which protocol comes under Hybrid dynamic type?
► Which protocol works only on Cisco routers?
► What is the size of Hello Packets in EIGREP protocol?
► How much hold down time of EIGREP protocol?
► What is Formula of Hold down time of EIGRP protocol?
► After how long EIGRP protocol Advertise its routing table?
► Which multicast IP EIGRP protocol use?
► Which protocol called Rapid protocol?
► What is the name of Algorithm of EIGRP protocol?
► How many hop counts are by default and how much you can increase in EIGRP protocol?
► How much internal and External AD of EIGRP protocol?
► What is the name of best path in EIGRP protocol?
► What is the second best path name of EIGRP?
► When DR communicate with BDR which multicast ip it use?
► What is the command for change serial cost?
► If bandwidth will increase what will happen?
► What is the default bandwidth size of T1 Routers?
► What is hold down time formula of OSPF?
► How many types of OSPF Configuration?
► What is default cost of serial interface in OSPF?
► On which bas OSPF take decision?
► Wild card mask always in odd value or even?
► On which interface we always Apply Access-List?
► What is the default behavior of Access-List?
► When we use extended Access-List?
► When we use standard Access-List?
► What is the difference between named and Extended ACL?
► 2500 value in which type of Access list?
► 1900 value in which type of Access list?
► 1350 value in which type of Access-list?
► Which protocol can do load balancing on unequal cost also?
► In EIGRP metric parameters which 2 Options are enable by default?
► What is the matric of EIGRP protocol?
► What is the draw back of EIGRP protocol?
► Which type of updates EIGRP protocol do?
► After how long keep alive messages exchange in EIGRP?
► How many types of ends in WAN?
► Which 2 Protocols are in WAN technology?
► What is overlaod?
► How many types of NAT?
► Which reserve port NO HTTP use?
► Which reserve port Number Talent use?
► What does EQ means?
► In port based Access-List which command u give instead of IP?
► In which Access- list type you can’t do editing?
► In stead of 0.0.0.0 wild card mask what u can write after IP?
► Which peer authentication method and which IPSEC mode is used to connect to the branch locations? (Choose two)
► Which algorithm as defined by the transform set is used for providing data confidentiality when connected to Tyre?
► Which defined peer IP address an local subnet belong to Crete? (Choose two)
► Which IPSec rule is used for the Olympia branch and what does it define? (Choose two)
► What is the difference between simple authentication and MD5?
► Which protocols do periodically updates?
► What is Trigger RiP and from which IOS version it starts?
► How many hope count Rip or Rip2 can send updates?
► Define Class full Protocol?
► Explain load balancing?
► How many maximum paths you can give on Latest IOS in RIP?
► Why we use filter option?
► What is the name of distance vector algorithm?
► On which base distance vector choose best path?
► What is matric?
► Which Dynamic Type draw back is, if single link down, it removes its routing table?
► Which protocols are link states?
► What is difference between RIP and RIPv2?
► Explain protocol?
► Which protocol used before part of CCNA?
► Which command we give for live view of remote site routers?
► Why we use debug command?
► What is difference between IGP and EIGRP?
► What is difference between routing and routed protocols?
► When we do default route?
► How many parts of Ping?
► Which type of routing you did in CCNA?
► What is difference between static and dynamic routing?
► What does routing mean?
► What does synchronization mean?
► Which command we give for see routing table?
► Which command we give if router IOS stucked?
► When written <CR > what does it mean?
► Interface 0/0 what does it mean?
► What s the formula for metric of OSPF?
► What is refresher?
► After how long OSPF exchange its topology table?
► What are partial updates?
► Which updates called incremental updates?
► Which table find best path?
► When OSPF protocol advertise its routing table?
► How many tables are in OSPF protocol?
► What is default time of hello packets in OSPF?
► What is default size of Hello packets in OSPF?
► What is name of OSPF Algo?
► What is difference between FLSM and VLSM?
► What is CIDR?
► What is subnetting?
► Do we subletting of IP?
► How many potions of IP?
► Which classes are assignable?
► Which company mange IP’s?
► What is the minimum and maximum request timer?
► When IP confliction accord in subnet which IP assigned automatically and what it called?
► When we use loop back IP?
► Which mode we can’t skip when we come back from interface mode?
► Which command we give on privilege mode for coming back to user execution mode?
► On Which mode we give debug command?
► When we use interface mode?
► Which mode called privilege mode?
► In which IOS version 182 people can access router through telenet?
► What is IOS?
► How many ways to access router?
► Which cable we connect in DB-9?
► Which cable called roll-over?
► How many types of Ethernet?
► What cable called V.35?
► Which works router Do?
► When we use Router?
► How many types of router?
► Which command we use for ping in IPv6?
► What is loop back IP in IPV6?
► What we called 64 Bit Mac-address in IPV6?
► HUB in Star topology or Bus Topology?
► If there is only 2 Host in Bus Topology is that possible collision accord?
► Which way of communication bus topology use?
► What is the difference between half duplex and full duplex?
► Which Type of Transmission Bus Topology Support?
► What is Collision?
► Types of Resource Sharing?
► Types of communication in IPv6 ?
► Explain Types of communication in IPv4?
► Define Network?
► What is quality of IPv6?
► Which mathematically form used inIPv6?
► How many fillers we can put in one IP of IPv6?
► Default Packet Size of IPv6?
► What is MAC address size of IPv6?
► In which protocol supenetting is enable by default?
► In which protocol you manually enable route summarization?
► How many valid IP will b in /21 in route Summarization?
► What will be the prefix length of 224 in VLSM?
► What is the subnetmask of / 27 in network based and host based?
► How many broadcast domains are in Switch?
► How many collision domains are in switch?
► How ARP brings MAC address for switch?
► On which base switches take decisions?
► If line up, but protocol down which layer should be troubleshot?
► If line down and protocol also down; in this case which layer move problem?
► Which type for communication switch do?
► What is CAM?
► Which protocol switch use for filling its MAC-Table?
► Is hub intelligent device?
► What is the difference between bus topology and HUB?
► What are the ranges of private IPS?
► How many types of IPS?
► What is Syntax of IPV4?
► What is the size of IPV4?
► Why IP address called logical address?
► How we can see MAC address from DOS Prompt?
► Who controls MAC address uniqueness and how?
► Why MAC address called Physical address?
► What is Size of IPv4 MAC Address?
► What is BIA?
► What is Encapsulation and De-encapsulation?
► What is FCS?
► Which layer called error detection layer?
► What is segmentation and fragmentation?
► Do you know How many types of Data?
► Which decision called socket base?
► Tell me How many reserve ports?
► Which layer are called upper layer?
► What is the default size of Frame?
► What is OSI?
► What is the IGP (Interior Gateway Protocol)?
► What is the multicast routing?
► What is the Virtual Path?
► What is the Virtual Channel?
► What is the logical link control?
► What is the difference between routable and non- routable protocols?
► What is the MAU?
► Explain 5-4-3 rule?
► What is the difference between TFTP and FTP application layer protocols?
► What is the difference between ARP and RARP?
► What is the ICMP protocol?
► What is the MAC address?
► What is the Attenuation?
► What is the Cladding?
► What are the NetBIOS and NetBEUI?
► What is the Beaconing?
► What is the Terminal Emulation, in which layer it comes?
► What is the Frame relay, in which layer it comes?
► What is the network Subnet?
► What is the network Brouter?
► How network Gateway is different from Routers?
► What is the Mesh Network?
► What is Passive Topology in ccna?
► What are major types of Networks and explain?
► What is Protocol Data Unit in ccna?
► What is difference between Baseband and Broadband Transmission in ccna?
► What are the possible ways of data exchange in ccna?
► What is point-to-point protocol in ccna?
► What are the two types of Transmission Technology available in ccna?
► What are 10Base2, 10Base5 and 10BaseT Ethernet LANs?
► What is RAID in ccna?
► Difference between the Communication and Transmission?
► What is Subnetting? Why is it used?
► What is a VLAN? What does VLAN provide?
► What is PING utility?
► What is difference between Switch & Hub?

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