Chillnz CCNA Exam 640-407 Practice Questions ________________________________________________________________________________________________ 1. NVRAM holds what ? startup-config 1 Default time for updates for distance-vector routing protocols 30 Sec 3. What are the three switching types Cut through Fragment-Free Store and forward 4. HDLC = Hig level Data Link Control. Bit oriented synchronous data link layer protocol developed by ISO. Derived from SDLC. 5. Frame Relay is variation of _____________ ? ans: HDLC 6. what is the last ISDN Equipment at CPE ? ans: NT1 7. Metrick limit for OSPF = ? ans: 65,535 8. True/false: X.25 can be used fro communication b/w 2 DTEs . ans: TRUE 9. which layer deals converts formats (unix-dos, EBCDIC-ASCII etc.) ? ans: Presentation 10. Keystrokes for next command ? ans: Control-N 11. Each AS (autonomous system) is assigned _________ bit address ? ans: 16 12. Class E IP address range and its use ? ans: 240-255 experimental 13. want to assign 2 IPs (virtual network) to an interface w/o using subinterfaces; command ? ans: ip address abc.def.ghi.jkl mask mno.pqr.stu.vwx (where mno.pqr.stu.vwx is secondary) 14. IPX; name the cisco encapsulations for the following FRAME Types : Ethernet 802.3 ----> novell-ether Token Ring ----> token Ethernet Snap ----> snap Token Ring Snap ----> snap Ethernet 802.2 ----> sap Ethernet II ----> arpa HDLC ----> hdlc 15. Command that will let you debug rip ? ans: debug ip rip 16. Routers segment network into smaller ________ domains ? ans: broadcast 17. Switches segment network into smaller _________ domains ? ans: collission 18. You ran "sh int ser0" ; received serial0 is up Line protocol is down - what does it mean ? ans: serial line 0 has a connection problem (no keep alives) 19. You see the following subnet addresses ; what is the subnet mask ? 128.252.4.0 128.252.8.0 128.252.12.0 128.252.16.0 ans: 255.255.252.0 20. Maximum hop is EIGRP ? ans: 224 (this is correct ) (verified from cisco web site) 21. You want to know the status of each interface ? 2 commands you could run ? ans: sh int and sh protocol 22. T/F: High end routers actually monitor their environments (temperatures etc.). ans: True 23. You do "sh runnin-config" and you get ! enable secret 5 $x$gAcVrJaSh6u9& enable password 7 873564gstg54g line vty 0 4 password 56HHJK7654BBN what does "5" and "7" indicate on "enable" lines ans: The numeral 7 indicates that the password is encrypted with the two-way algorithm. The numeral 5 indicates that the password is encrypted with the one-way, secret algorithm. 24. What special charcters can you use in defining the command prompt ? %h Router's hostname %s The space character. %t The tab character. %n The absolute line number that is being used by the user. %p The prompt character that can be either the greater-than sign (>) for user mode or the number sign (#) for privileged mode. 25. You want to wipe away the default prompt for the configuration mode. Which command do you type ? ans: no service prompt config (global configuration command)