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93 Cards in this Set
- Front
- Back
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What command saves running configuration |
(Config)#copy running-config startup config OR (config)#write memory |
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What command resets configuration settings |
(Config)# erase startup-config OR (config)# write erase |
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What command reloads the router? |
#reload |
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How does one view all directories? |
#dir all |
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What command would you use to delete the file "file" from the flash directory |
(Config)# delete flash:file |
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How would you assign the encrypted password "cisco" to privileged mode? |
(Config)# enable secret cisco |
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How would you configure a physical console password to be "cisco" |
(Config)# line con 0 --> (config-line)# password cisco |
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How would you configure a telnet password to be "cisco"? |
(Config)# line vty 0 4 --> password cisco --> login |
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A switch is to a port what a router is to a.... |
Interface |
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What command configures the name of a cisco device to "switch1"? |
(Config)# hostname switch1 |
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How would you view the interfaces on a router. |
# show ip interface brief |
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What feature on a switch enables telnet, even when there is no IP address? |
Switched Virtual Interface (SVI) |
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What is CDP used for? |
Layer 2 neighbor discovery |
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What info is provided by CDP? |
Platform, interface, IP Address, and OS version |
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What is a nonproprietary equivalent to CDP |
Link Local Discovery Protocol (LLDP) |
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How would you use no shutdown on the FastEthernet 0/1 interface. |
(Config)# int fastethernet 0/1 ->(config-if)# no shutdown |
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What command shows CDP info |
#show cdp |
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How often does CDP receive update packets? |
60 seconds |
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How long does CDP hold its packets before clearing them |
180 seconds |
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What command enables CDP, and what command disables it. |
(Config)# cdp run AND (config)# no cdp run |
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How would you view the neighbor table in CDP |
# show cdp neighbor |
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What makes a VLAN |
It means you made multiple LANs, or multiple broadcast domains on one switch |
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How would you configure the fastethernet interfaces 1-3 simultaneously. |
(Config)# interface range fastethernet 0/1-3 |
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How would you create vlan1, and then assign it to fastethernet 0/1 |
(Config)# vlan 1 ---> (config)# int fastethernet 0/1--> (config-if)# switchport mode access ---> switchport access vlan 1 ---> end |
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What is a Vlan trunk? |
It is a table of all broadcast domains. |
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How would you get into privileged executive mode? |
Switch> enable |
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How would you get into global configuration mode? |
Switch# configure terminal |
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How would you configure the interface fa0/1 on a switch. |
#config t --> (config)#int fa0/1--> (config-if) |
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How would you get out of global configuration mode? |
(Config)# exit |
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How would you get out of privileged executive mode |
# disable |
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How would you change an interface to perform vlan trunking |
(Config-if)# switchport mode trunk |
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How often does spanning tree protocol update its bpdu's |
2 seconds |
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How long does stp retain bpdu's |
20 seconds |
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The purpose of spanning tree protocol is to what? |
Remove networking loops. |
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802.1x is used for what? |
User Authentication |
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What is the administrative distance of a static route |
1 |
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What is the administrative distance of eigrp |
90 internally 170 externally |
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What is the administrative distance of ospf |
110 |
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What is the administrative distance of Isis |
115 |
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What is the administrative distance of rip |
120 |
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What is the administrative distance of bgp |
200 internally 20 externally |
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What is the administrative distance of an unreachable protocol |
255 |
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What is Administrative distance |
It defines the believability, reliability, or the priority of a protocol |
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What does igp stand for, and what does it do |
Interior Gateway protocol It provides reachability within an autonomous system |
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What does EGP stand for, and what does it do |
Exterior Gateway protocol , Designed to provide reach ability between autonomous systems |
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What is the only exterior Gateway protocol |
Bgp, or border Gateway protocol |
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What are the four types of routing protocols |
Distance vector, Lynx state, Advanced distance vector, and path vector |
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Which type of routing protocol is EGP |
Path vector |
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What is a good mnemonic to memorize the OSI model |
All people seem to need data processing (application, presentation, session, transport, network, data link, and physical) |
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What is one characteristic of a link State protocol |
Incremental or triggered updates |
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What is the neighbor requirement for distance Vector protocols |
There are none |
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How does distance Vector maintain its route |
Resends after defined interval |
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What is the visibility of a distance Vector routing protocol |
It can only see the routers directly connected to it |
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What are some examples of distance Vector protocols |
Rip version 1 and 2, igrp |
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What is the Neighbor requirement 4 Link State protocols |
Neighborships |
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How do link State protocols maintain its route |
Periodic hellos |
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What are some examples of Link State protocols |
Ospf, and Is-is |
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What characterizes Advanced distance vector |
As the visibility of a distance vector, but the route maintenance of Link state |
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What protocol is Advanced distance vector |
Eigrp |
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What characterizes a path vector |
Periodic Hello's, no knowledge of network topology, depends on interior Gateway protocol |
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What is a routing metric |
It is the number used for best path selection process |
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What are the three types of routing metric |
Hop counts, link bandwidth, and composite formulas |
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How often does rip update |
Every 30 seconds |
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What is the multicast ipv4 address for ripV2 |
224.0.0.9 |
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What is the multicast IPv6 address for rip V2 |
Ff02::9 |
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Is rip classful or classless? |
Classful |
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What info is provided by a routing table |
Route type ip address, admin distance, hop count, and interface |
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What is the neighbor requirements for eigrp |
Same Source IP subnet, K values, and autonomous system values |
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What is the formula for administrative distance in eigrp |
AD= lowest bandwith * sum of all delays |
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In eigrp, what would be the wildcard mask to ensure that it would be class c |
0.0.0.255 |
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What are the commands for a basic eigrp configuration |
(Config)# router eigrp <AS number> -> (config-router)# no auto-summary -> network 1.0.0.0 |
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What is the stp cost of a 10 mbps port, 100 mbps port, a 1 gbps port, a 2 gbps port, and a 10 gbps port |
100, 19, 4, 3, 2 |
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In stp, what factors determine root ports, and in what order |
Least cost, least bridge ID, least port id |
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In STP, how is the root bridge calculated? |
Lowest bridge ID |
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How would you set the root bridge priority to primary or secondary on vlan 1 |
(Config)# spanning-tree vlan 1 priority primary |
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If two bridges have the same root priority, how is the election resolved? |
Whoever has the lowest mac address |
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What is the root priority number generated by the command (config)# spanning-tree vlan 1 root secondary |
28672 |
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What commands would you use to change a ports cost to 1, and its priority to 0 |
(Config)# spanning-tree vlan 1 cost 1 (Config)# spanning-tree vlan 1 port-priority 0 |
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What is the BPDU (think hello) timer, and the max age timer in STP |
2 seconds, 20 seconds |
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Between root ports and designated ports, which one receive the BPDUs |
The Root Receives BPDUs |
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What is the IEEE specification of STP and RSTP |
802.1d and 802.1w |
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What is the function of Uplinkfast? |
In STP, it instantly switches port modes if a root port goes down. |
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What command is used to configure RSTP instead of STP (remember per vlan STP) |
(Config)# spanning-tree mode rapid-pvst |
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What are the 3 port states in RSTP |
Listening, Learning, Forwarding |
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What is an etherchannel? |
Its a cisco proprietary term for portchanneling, which is combining multiple physical interfaces into one logical interface. |
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How many links can be combined into 1 etherchannel? |
8 |
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What is the requirement for interfaces to be in the same etherchannel? |
Same speed, same duplex, and same port mode. |
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What is the last bit value of the first three bits on a class a, b, and c address |
011,110,111 |
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What is PPP |
Point to Point Protocol, it is a layer 2 WAN protocol. |
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What are the steps of PPP |
Link Control Protocol (LCP), authentication (optional), Network Control Protocol (NCP) |
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What is bpduguard, and how do you enable it? |
It is a protocol independent of STP, but commonly used with ports that will be using portfast to automatically go into forwarding mode. It prevents bpdus from changing the port mode. The command to enable it is (config-if)# spanning-tree bpduguard enable |
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What is chap, and how does it work |
It is a PPP authentication protocol. It stands for Challenge Handshake Authentication Protocol. It works by using a hashing algorithm to send the passwords, in this way, a sniffer wont be able to get that information and wont be able to spoof. |
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What is MPLS, what does it do, and what is its purpose |
Multi Protocol Label Switching. It places a Label header in between the layer 2 and layer 3 headers, AKA a shim header. Doing this allows for VPNs and allows said VPNs to reuse addresses. |
