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132 Cards in this Set
- Front
- Back
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how do you change the configuration register to rommon? |
config-register 0x2120 |
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what is the default encapsulation on leased lines? |
HDLC- high level data control |
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is the username and password for chap authenticationconfigured globally or per interface? |
globally |
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what are the 4 timers in HSRP? |
hello, hold, active, standby |
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in network speed, what is a ds0? |
64kbps |
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what is a fractional t1? |
mutliples of 64 kbps, up to 1.544mbps |
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what is a full ds1? t1? |
1.544 mbps |
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what is a fractional t3? |
multiples of 1.544 up to 44.736 mbps |
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what is a ds3 or t3? |
44.736 mbps-28 ds1 |
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which authentication method starts by sending the password in clear text |
PAP- password authentication protocol |
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why would you use the keyword when configuring trunking - ietf? |
because the router on the other end of the link isnt' a cisco router |
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why would you use the keyword broadcast? |
to broadcast a route across a frame relay link- because frame relay is a non broadcast network |
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dlcis range from ___ to ___ |
0 to 1023 |
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what are the 3 lmi types? |
cisco, ansi, q933a |
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the ___________ is the actual speed of the port connected to the frame relay service provider. |
access rate |
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the _________ is the rate at which the customer can send data into the frame relay network. there is not a guarantee beyond this rate |
committed information rate- CIR |
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what is oversubscription? |
when you add up all the committed information rates of your virtual circuits and they are higher than your access rate |
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what does vpn provide (4)? |
Confidentiality, authentication, data integrity, and anti-replay |
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What are the 4 port states of spanning tree 802.1d? |
blocking, listening- not forwarding frames- no mac addresses stored, learning- stores mac addresses, but no forwarding, forwarding |
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what command will you use to see info about a specific port channel interface? |
show etherchannel port-channel |
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what command will you use to make your switch the root switch for vlan 3? |
spanning-tree vlan 3 root primary |
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what are the two modes you can set w/ lacp? |
active and passive |
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in a spanning -tree bridge election, does the highest or the lowest bridge id win? |
the lowest |
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what is stored in nvram? |
the configuration files- startup config |
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what is stored in flash? |
ios image |
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what is the normal config register setting? |
ox2102- load ios from flash |
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what is 0x2100? |
also rom mon |
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what is setting 0x2101? |
boot from mini-ios |
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what setting is 0x2142? |
password recovery |
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what is required to obtain an IOS license? |
the UDI- unique device identifier |
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what are the two parts of the UDI? |
the PID- product id, and the serial number of your router |
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how do you see the udi? |
show license udi |
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What is needed to activate a cisco software package? |
using your UDI and PAK - product authorization key |
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what is the command to install your license? |
license install |
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how do you install a right to use license? |
license boot module |
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how do you show what licenses are installed? (3) |
show license, show license feature, show version |
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how do you back up a license? |
license save |
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what are the two steps to uninstalling a license? |
disable it: license boot module ....disable, then clear: license clear securityk9.....no license boot module...disable, then reload |
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what is the differentiation between permanent and right to use license in regard to installation? |
you use license install for a permanent vs license boot module for a right to use |
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what does the hold timer do? |
defines how long to wait until you assume the active router is offline |
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what is the active router called in VRRP? |
the master virtual router |
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what are the routers that arent' the active router called on vrrp? |
backup routers |
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what messages are exchanged in vrrp to communicate between routers? |
vrrp messages |
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which of the 3 popular routing protocols send periodic full updates? |
only ripv2 |
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true or false, all 3 protocols use the hello protocol? |
true |
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does ospf use route poisoning? |
yes, but with a different metric |
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what is the multicast address for routing updates on ospf? |
224.0.0.5 and 224.0.0.6 |
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what is the designation in the routing table for an eigrp route? |
D |
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what protocol is used between the frame relay data terminal equipment (your router) and the switch (frame relay switch)? |
LMI |
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are designated ports typically in a forwarding state? |
yes |
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does a root switch have root ports? |
no, all ports are designated ports |
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what is the cost equation with ospf? |
1000/actual port speed- so a1gb link would be 1000/1000 = 1 |
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how is the router-id determined on an ospf router? |
the router id if its configured, the highest ip on a loopback first, if not, then highest ip of a nonloopback is the RID |
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how do you view all lsas on a router? |
show ip ospf database |
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with eigrpv6, do you have to have the same asn on both ends of the link to be a neighbor? |
yes |
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if one end of a trunk link is set to nonnetgotiate, what settings on the other end won't work? |
dynamic auto and dynamic desirable, because dtp messages are needed and are not being sent, wont' work with pagp |
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what package would contain voip? |
uck9- unified communications |
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what distance vector feature prevents routing loops by causing the routing protocol to advertise only a subset of known routes? |
split horizon |
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what does the status code A mean in eigrp? |
active- its actively looking for an option- calculations are being done |
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what does status code P mean in eigrp? |
passive- no computations are being performed, as its in a stable state |
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In frame relay, if all three subinterfaces are listed in one multipoint interface, you will not see mapping information for all 3, true or false? |
true |
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what command shows you the information learned from inverse arp? |
show frame-relay map |
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does a router have to be in the backbone only to be a backbone router? |
no, it can be connected to two areas. then its a backbone and an area border router |
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what is an unsolicited message from an snmp agent that requires acknowledgement from a network management station? |
an inform message- it requires an ack. a trap does not |
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what is the broadcast address used by glbp? |
224.0.0.102 using udp for hellos |
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in an hsrp, which router wins the election? |
the one with the higher priority |
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what are the 7 syslog trap levels? |
Eat at charlies, eat walrus, not in december- emergency, alert, critical, error, warning, notification, information, debugging |
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what are the 4 steps to configuring snmp? |
enable snmp read-write access to the router, configure snmp contact info, configure snmp location, configure an acl to restrict snmp access to the nms hosts |
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what 4 things must be done to configure netflow? |
configure data capture - ingress and egress, configure data export by specifying the ip address of he collector and the udp port, configure the version, verify netflow by analyzing the exported data on a host or router |
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what command is used to configure a host to send messages to a syslog server located at 172.16.1.2? |
logging 172.16.1.2 |
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which security mode of snmp version 3 features the use of a username for the authentication method as opposed to md5 or sha? |
noauthnopriv |
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does spanning tree have a port designation called backup? |
no, root, designated and alternate |
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where is the startup-config file stored by default? |
nvram |
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what are two commands to configure a logging trap? |
logging trap 4, logging trap warning |
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how can hsrp load balance beyond per vlan? |
by using multiple hsrp groups |
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what is the command to set up netflow egress on an interface? |
ip flow egress |
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what is used as an identifier for each variable in the MIB in the SNMP framework? |
OID |
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what command configures a device to be monitored but not configured by version 2c of snmp, using a community string of ciscosanfran? |
snmp-server community ciscosanfran RO |
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what unsolicited message from an snmp agent requires an acknowledgment? |
inform |
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what are the two modes of pagp? |
auto and desirable |
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does ospf use split horizon? |
no |
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which trunk protocol uses dtp? |
pagp- dynamic auto and dynamic desirable |
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1) You wanttraffic from vlan 66 to traverse a trunked link untagged. What command do you use? |
switchport native vlan 66 |
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which trunk mode will not allow dtp frames to be generated from a switchport? |
nonnegotiate |
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what are the 3 most common encapsulation protocols are supported by cisco for wan connections? |
hdlc, ppp, and frame relay |
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what does lcp do? |
builds and controls data link connections |
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what command do you use to debug ppp authentication? |
debug ppp authentication |
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what two encapsulation types are available with frame relay? |
cisco and ietf |
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what does inverse arp do? |
maps a dlci to an ip address |
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how do you check if the frame relay network is congested? |
show frame-relay pvc- look at the stats for lots of fecn, becn, and de packets |
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in frame relay how do you configure a subinterface- give an example |
conf t int s0/0 no shutdown encapsulation frame-relay int s0.102 point-to-point ip add 192.168.1.1 frame-relay interface-dlci 102 |
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what are the 3 types of vpns |
site to site, remote access, and extranet. extranet is for vendors, remote access is for client computers, and site to site is self-explanatory |
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what are the two modern tunneling protocols in use with vpns? |
layer 2 tunneling protocol and GRE- generic routing encapsulation |
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what are the two ipsec security protocols? |
AH- authentication header and ESP- encapsulating security protocol |
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What two things happen when eigrp or ospf is enabled on an interface? |
It tries to find neighbors off of that interface and It advertises the subnet connected to that interface |
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what are the ppp data link protocols? |
LCP- link control protocol, and NCP- network control protocol |
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what is an OOB network used for? |
out of band network- used to manage syslog traffic |
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what command manually sets the speed of the DTE? |
clock rate |
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in frame relay, which is the DTE and which is the DCE? |
DTE is your router, DCE is the frame relay equipment |
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what are the 2 ethernet trunking modes? |
ISL- which is cisco proprietary and 802.1q, also called dot1q, which is IEEE standard |
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what size is the tag field that's added to ethernet frames |
4 byte |
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how is the list of vlans saved on a switch? |
the vlan.dat file |
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how do you add interface fa0/1 to vlan 2? |
conf t int fa0/1 switchport mode access switchport access vlan 2 |
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what are the 3 vtp messages |
advertisement, subset advertisement, and summary advertisement |
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what are the two additional port roles w/ rapid spanning tree? |
backup and alternate, alternate is a backup port to a root port and backup is a backup for the designated port |
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whats the difference in convergence between spanning tree and rapid spanning tree? |
much shorter timeframe, once a bpdu hasn't been received but 3 hellos have (def 2 sec each), convergence occurs |
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how do you enable rapid spanning tree? |
spanning-tree mode rapid-pvst |
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how many links can you bundle in an etherchannel? |
up to 8 |
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what happens in etherchannel if you dont' specify load-balance? |
it defaults to load balancing by source mac address |
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what 3 things can be caused by layer 2 loops? |
broadcast storms, multiple frame copies, mislearned mac addresses |
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what are the 2 goals of spanning tree? |
all devices in a vlan can send frames to all other devices, frames have a short life and do not loop around indefinitely |
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what are the two main functions of a router? |
1) find a layer 3 path to a destination network 2) to move packets from one interface to another to get a packet to its destination |
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what metrics do each of the 3 popular routing protocols use? |
rip uses hop count, ospf uses cost, eigrp uses primarily bandwidth and delay, but also use mtu size, load, and reliability to an extent |
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what are the 4 feature sets available in a cisco ios image? |
data, security, ipbase, and voice |
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what command will show you the spanning-tree root bridge for each vlan? |
show spanning-tree summary |
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what command allows you to change the location from which the system loads the ios? |
boot system |
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where is the ios file located? |
flash |
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where is the startup config located? |
flash |
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your router comes w/ an existing config, what do you do? |
erase startup-config, abbreviated- erase start- this erases nvram |
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which gives more info- show license or show license feature? |
show license is more detailed |
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if you want traffic from vlan 66 to traverse a trunked link untagged, what command will you use? |
switchport trunk vlan 66 |
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what are the 5 modes you can set a switch port to? |
auto, desirable, access, trunk, nonnegotiate |
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with what ipv6 destination prefix does a dhcpv6 solicit address begin? |
ff02::/16 |
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what is the command to enable eigrpv6 from global config mode? |
ipv6 router eigrp 1 |
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what is the eigrpv6 multicast address? |
ff02::a |
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what are the two encapsulation options for frame relay? |
cisco and ietf |
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which two commands show the frame-relay lmi standard in use? |
show interfaces and show frame-relay lmi |
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with what ipv6 destination prefix does a dhcpv6 solicit address begin? |
ff02::/16 |
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What are the 5 neighbor states in ospf? |
init, 2 way, exstart, loading, full |
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what is the default administrative distance for a connected route? a static route? |
0, 1 |
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T or F- the router id must be unique between neighbors for both eigrp and ospf? |
False- ospf only |
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name e valid lmi options you can configure on a router. |
cisco, ansi, and itu |
