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ccent
network ccent test
| Question | Answer |
|---|---|
| Commands to configure RIP routing? | router rip network 10.0.0.0 (NOT 10.4.0.0, as classful) |
| Command to show routing table? | show ip route |
| Command to show realtime RIP routing updates? | debug ip rip |
| Command to create a static route for network 172.17.0.0 to 172.16.0.1? | ip route destNetwork-IP dest-subnetMask nextHop-IP (ip route 172.17.0.0 255.255.0.0 172.16.0.1) |
| Command to set default route to network 206.143.5.0, in 3 ways? | ip route 0.0.0.0 0.0.0.0 206.143.5.2 ip route 0.0.0.0 0.0.0.0. s1 ip default-network 206.143.5.0 ip classless (at the end of each) |
| Command always required to set default route? | ip classless |
| Commands to stop sending routing info from s0/0? | router rip network 192.168.0.0 passive-interface serial 0/0 |
| What prevents routing loops with flapping interfaces? | Holddown timers |
| What prevents routing loops by not sending info out from the same interface the info came from? | Split horizon |
| What prevents routing loops by sending max hop count 16 when a link fails? | Route poisoning |
| What is AD of connected interface? | 0 |
| What is AD of static route? | 1 |
| What is AD of EIGRP? | 90 |
| What is AD of IGRP? | 100 |
| What is AD of OSPF? | 110 |
| What is AD for IS-IS? | 115 |
| What is AD for RIP? | 120 |
| What is AD for External EIGRP? | 170 |
| What is AD for unknown? | 255 |
| Commands to configure RIPv2? | router rip network 192.168.40.0 version 2 |
| What is max hop counts for RIP/IGRP? | RIP - 15 IGRP - 255 |
| How often does RIPv1/RIPv2/IGRP send full routing table update? | RIPv1/v2 - every 30 seconds IGRP - every 90 seconds |
| Command to show routing protocols configured on router? | show ip protocols |
| Command to cancel propagating a network 192.168.10.0? | no network 192.168.10.0 |
| Command to disable RIP? | no router rip |
| What is update/reply from a router to the router from which it received Route Poisoning, saying it has received Route Poisoning? | Poison reverse |
| What are two classes of routing protocols regarding AS? | IGP (Interior Gateway Protocols) & EGP (Exterior Gateway Protocols) |
| Is BGP a IGP or EGP? | EGP |
| What are three classes of routing protocols? | Distance vector Link-state Advanced distance vector (balanced hybrid) |
| Commands to configure DHCP server - address pool called myPool with network 10.1.8.0/24, default-gateway 10.1.8.1, DNS server 10.1.8.100 & 10.1.8.101, domain name myDomain.com? | config t service dhcp ip dhcp pool myPool network 10.1.8.0 255.255.255.0 default-router 10.1.8.1 dns-server 10.1.8.100 10.1.8.101 domain-name myDomain.com exit ip dhcp excluded-address 10.1.8.1 |
| What's in flash memory? | IOS (.BIN file) |
| What's in NVRAM? | Startup-config |
| What's in (D)RAM? | Running-config. |
| What's in ROM? | POST, Bootstrap & Mini-IOS |
| What does router do if configuration register is 0x2102? | Boot from NVRAM (derault). (Startup-config) |
| What does router do if configuration register is 0x2101? | Boot from ROM. (Mini-IOS) |
| What does router do if configuration register is 0x2142? | Ignore NVRAM. (Password recovery) (Rom Monitor - ROMMON mode) |
| What command to see neighbor router's IP address? | show cdp neighbors detail (NOT neighbor. NOT details) |
| What command to see neighbor router's hostname, local int, platform and remote port? | show cdp neighbors (NOT neighbor) |
| What command to terminate a telnet session? | exit |
| What key combination to get back to console whilst keeping telnet session? | Ctrl + Shift + 6, release it, then X |
| What command to check telnet sessions from your router to remote device? | show sessions |
| What command to build static host table? | ip host hostName IPaddress |
| Command to check host table? | show hosts |
| Old command to do the same as copy start run? | config mem |
| What's key combination to interrupt router boot sequence? | Ctrl + Break |
| Command to show interface traffic including CDP packets sent/received and CDP errors? | show cdp traffic |
| Command to show CDP status on router interfaces or switch ports? | show cdp interface |
| Command to check active consoles and VTY ports in use on your router? | show users |
| Command to change Configuration Register to 0x2101? | config-register 0x2101 |
| Command to turn off CDP on s0/0/0? | config t int s0/0/0 no cdp enable |
| Command to turn off CDP on router? | no cdp run |
| In ROMMON mode of ISR/2600, command to change Configuration Register to 0x2142? | confreg 0x2142 reset |
| In ROMMON mode of 2500, command to change Configuration Register to 0x2142? | o/r 0x2142 |
| Command to show current IOS name, size and size of flash memory? | show flash |
| Which is correct on router, tracert or traceroute? | traceroute |
| Command to see console messages (e.g. debug) through telnet? | terminal monitor |
| Commands to configure DNS server 192.168.10.1 and default domain name mydomain.com? | config t ip domain-lookup ip name-server 192.168.10.1 ip domain-name mydomain.com |
| Command to turn off domain lookup? | no ip domain-lookup |
| Every ( ) seconds CDP sends update as default? | 60 |
| Which layer does CDP work? | Data Link (as it does not require IP address) |
| Is CDP on as default on Cisco routers? | Yes |
| Command to display ARP cache (IP-MAC table)? | show ip arp |
Created by:
firewitch1soulwriter
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