Index of Mistakes

Pass for Sure
Pass4sure1
Pass4sure2
Pass4sure3 with Dato
Pass4sure4 with Dato
Pass4sure5 with Dato
Pass4sure6 with Dato - Final Effort

New Wave - Mixture
5 SET
6 SET
7 SET
8 SET
9 SET
10 SET
11 SET

Summaries:
Set 1

Routing tables , current configuration and log files are stored in RAM memory
show version shows configuration register value
to view amount of memory in flash use show version
to view name of IOS image show flash because images are stored in Flash
copy flash tftp without specifying addresses!
router loads ios image from :Flash, Tftp, ROM
to display contents of the configuration file stored in nvram use sh start show config
show protocols displays interfaces and its IPs
logging buffered to view paage by page
Ctrl+C to exit setup initial configuration
order : boot system statement, flash, tftp, Rom

Set 2

.192 = 256-192 = 64
to recover lost password one needs to modify nvram and configuration register
cashed list of hostnames: show hosts
config-if# des This Is Ethernet Port description
description only to specific interface, not telnet sessions,
serial administratevly down /down - disabled/physically down
show cdp nei - view type of the connected device, "TS" trans bridge or switch
show cdp - view holdtime
ip default-gateway 1.1.1.254 no mask is needed
vlan - phisically the same network , logically - separate
ISL - encapsulates any data link protocol, multiple spanning tree instanses , uses asic ,propprietary
802.1q just inserts 4 byte tag after source addresss, thats why doesnot encapsulates entire frame, only 1 spanning tree instance per switch
switch in backup mode is blocking state
vlans can be created using layer 3 switches
each vlan uses its own spa protocol instance
switchport portsecurity violation restrict - sends snmp trap
maximum sticky -132

Set 3

OSPF : network 10.69.3.21 0.0.0.0 area 1 - to assign only 1 interface, 255.255.255.255 - all addresses, thats why invalid
FTP ports :20 - control channel port; 21- data channel port
access-list 122 deny 192.168.1.0 0.0.0.255 199.66.220.0 0.0.0.255
router eigrp 12
network 1.0.0.0 -all needed to configure EIGRP
EIGRP uses automatic classfull route summarization - default
EIGRP uses uses multiple protocol IP, AppleTalk, IPX
OSPF operates within a controlled hierarchy

                                
                                   DATA
                                  _____________

                    SEGMENT
                    __________________________

          PACKET
          ____________________________________

FRAME
______________________________________________

access-list 101 permit ip any any - allows all TCP/IP traffic
OSPF requirements for traffic to maintain routing tables is less, for hardware calculation is more
time stamps, aging timers , sequence numbers - ospf uses all
access-list 1 permit 192.168.2.0 0.0.0.255
ip nat inside source list 1 interface serial 0 overload - one static ip
(config-router)#passive-interface e0 - stop rip updates
if there is no entry in routing table, interface is in shutdown mode
ip default-gateway - to assign default gw
terminal monitor -to view debug output

Set 4

CPE - Customer Premises equipment - is not responsibility of provider
ISDN Bri is a dial up type
LAPD provides control and signaling information with isdn
LCP - data can be compressed at source and decompress at destination
PPP features - supports ISDN asynch/ sychronouus serial interfaces, uses NCP LCP, encapsulates IPX, Appletalk
LCP - compresses and monitors data, provides load-balancing
PPP order - LCP , authentication, NCP
PPP order - compression setting, authentication, networ layer protocol
PPP is a successor to slip
command bandwidth 64 = 64 Kbps
encapsulation PPP
PPP authentication PAP
service password encryption encrypts CHAP also
username router B password cisco
int s1
encap ppp
ppp encap chap
test #13 - configuiring PPP
show interface also shows encapsulation type
open : IPCP, CDPCP - means that tcpip and cdp are being encapsulated