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Test your basic knowledge |
CCIE Vocab
Start Test
Study First
Subjects
:
certifications
,
ccie
,
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A style of attack in which an ICMP Echo is sent with a directed broadcast (subnet broadcast) destination IP address - and a source address of the host that is being attacked. The attack can result in the Echo reaching a large number of hosts - all of
smurf attack
Rapid Spanning Tree Protocol
Link-State Acknowledgment
collision domain
2. Layer 2 payload compression.
Remote VLAN
Per-VLAN Spanning Tree Plus
payload compression
stub network (OSPF)
3. A logical group of content engines running WCCP between them. The lead content engine determines the traffic distribution within the cluster - for optimum performance and scalability.
LSRefresh
WCCP cluster
Cisco Group Management Protocol
wireless LAN controller
4. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should forward the attribute unchanged (tran
anycast
SRTT
All OSPF Routers
optional transitive
5. Ethernet feature in which a NIC or Ethernet port can both transmit and receive at the same instant in time. It can be used only when there is no possibility of collisions. Loopback circuitry on NIC cards is disabled to use full duplex.
IPCP
shaped mode
CS
full duplex
6. An exterior routing protocol designed to exchange prefix information between different autonomous systems. The information includes a rich set of characteristics called path attributes - which in turn allows for great flexibility regarding routing ch
Border Gateway Protocol
NLPID
LMI
LFI
7. A list of interspersed alphanumeric literals and metacharacters that are used to apply complex matching logic to alphanumeric strings. Often used for matching AS_PATHs in Cisco routers.
limiting query scope (EIGRP)
regular expression
ISL
multicast IP address structure
8. A technology that enables frequency reuse. Two variants exist: frequency hopping (FHSS) and direct sequence (DSSS). Both techniques spread the signal power over a relatively wide portion of the frequency spectrum over time - to reduce interference be
spread spectrum
permanent multicast group
Forwarding Information Base
label switched path
9. A Cisco IOS interface software queue queuing strategy implemented automatically when using either form of Frame Relay fragmentation. The system then interleaves packets from the high-priority queue between fragments of the medium-priority queue.
quartet
NLRI
Dual FIFO
U/L bit
10. A BGP path attribute that lists ASNs through which the route has been advertised. The AS_PATH includes four types of segments: AS_SEQ - AS_SET - AS_CONFED_SEQ - and AS_CONFED_SET. Often - this term is used synonymously with AS_SEQ
confederation identifier
AS_PATH
SLSM
Label Distribution Protocol
11. A NAT term describing an IP address representing a host that resides inside the enterprise network - with the address being used in packets outside the enterprise network.
summary route
Bipolar 8 Zero Substitution
Inside Global address
NLRI
12. A Cisco-proprietary protocol - used by LAN switches to communicate VLAN configuration.
VLAN Trunking Protocol
LOCAL_PREF
remote label
Alternate Mark Inversion
13. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.
confederation
IGMPv2 Host Membership Query
network layer reachability information
full update
14. WRED is a method of congestion avoidance that works by dropping packets before the output queue becomes completely full. WRED can base its dropping behavior on IP Precedence or DSCP values to drop low-priority packets before high-priority packets.
fully adjacent (OSPF)
Tag Distribution Protocol
weighted random early detection
no drop
15. A method that creates three thresholds per egress queue in the Cisco 3560 switch. Traffic is divided into the three queues based on CoS value - and given different likelihoods (weight) for tail drop when congestion occurs based on which egress queue
VTP
weighted tail drop
Route Distinguisher
distribution list
16. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local confederation sub-AS.
LOCAL_AS
DD
IP prefix list
encapsulation
17. Cisco-proprietary STP feature in which a switch port monitors for incoming superior Hellos - and reacts to a superior Hello to prevent any switch connected to that port from becoming root.
MLP
IOS Intrusion Prevention System (IPS)
Root Guard
Dynamic Trunking Protocol
18. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.
input event
802.1Q-in-Q
label switched path
802.11a
19. The rate at which a shaper limits the bits exiting the shaper.
BackboneFast
Report Suppression mechanism
EEM
shaping rate
20. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.
public wireless LAN
shaped mode
NO_EXPORT_SUBCONFED
querier election
21. An FRF standard for LFI for data (FRF.3) VCs.
VRRP
FRF.12
MTU
enable secret
22. An alternative software loaded into a Cisco router - used for low-level debugging and for password recovery.
Expedited Forwarding
ROMMON
direct sequence spread spectrum
VRRP Master router
23. In the context of SNMP - the Set command is sent by an SNMP manager - to an agent - requesting that the agent set a single identified variable to the stated value. The main purpose is to allow remote configuration and remote operation - such as shutt
Dijkstra Algorithm
Set (SNMP)
Context-Based Access Control
AS_PATH
24. Secure Shell protocol used for character-oriented command-line access and configuration. A highly secure alternative to Telnet.
switched interface
SSH
Multilink PPP
path attribute
25. The All OSPF Routers multicast IP address - listened for by all OSPF routers.
224.0.0.5
Link Fragmentation and Interleaving
neighbor (OSPF)
cross-over cable
26. A name used for DS3 lines inside the North American TDM hierarchy.
CST
Virtual Router Redundancy Protocol
T3
client tracking
27. A DiffServ PHB that defines eight values that provide backward compatibility with IP Precedence.
active (EIGRP)
static length subnet masking
Service Interworking
Class Selector
28. A router feature used when a router sees an ARP request searching for an IP host's MAC - when the router believes the IP host could not be on that LAN because the host is in another subnet. If the router has a route to reach the subnet where the ARP-
same-layer interaction
proxy ARP
IP SLA responder
Web Cache Communication Protocol
29. Weighted random early detection.
tail drop
WRED
Wi-Fi Protected Access
AS_PATH prepending
30. An 802.1d STP port state in which the port sends and receives frames.
VPN label
forwarding state
Slow Start Threshold
offset list
31. Protocol Independent Multicast dense-mode routing protocol.
stateful autoconfiguration
PIM-DM
Outside Local address
DHCP snooping binding database
32. In 802.1X - the computer that stores usernames/passwords and verifies that the correct values were submitted before authenticating the user.
community VLAN
authentication server
Context-Based Access Control
SSH
33. An NTP mode in which two or more NTP servers mutually synchronize their clocks.
NTP symmetric active mode
Inside Local address
Extensible Authentication Protocol
enhanced editing
34. A standards-based way of helping routers find Rendezvous Points (RP). RPs notify BSRs of the groups they handle. BSRs in turn flood the group-to-RP mappings throughout the network. Each router individually determines which RP to use for a particular
Label Distribution Protocol
CoS
Bootstrap Router (BSR)
LFIB
35. A name used for DS1 lines inside the North American TDM hierarchy.
stateful autoconfiguration
external route
VLAN Trunking Protocol
T1
36. Virtual Router Redundancy Protocol.
VRRP
LSP segment
adjacency (EIGRP)
multi-action policing
37. Cisco IOS Embedded Event Manager - a feature that monitors events on a router and reports their results. Principally intended to increase availability - EEM provides flexible - granular detection and alerting functions.
AES
Rapid Spanning Tree Protocol
EEM
Extensible Authentication Protocol
38. Inverse ARP.
Update (EIGRP)
AAAA
stub router (EIGRP)
InARP
39. The single port on each nonroot switch upon which the best Hello BPDU is received.
root port
source-specific addresses
Maximum Segment Size
receiver's advertised window
40. With OSPF - the timer used to determine when a neighboring router has failed - based on a router not receiving any OSPF messages - including Hellos - in this timer period.
VRRP Master router
Dead Time/Interval
Per-Hop Behavior
Goodbye (EIGRP)
41. The algorithm used by OSPF and IS-IS to compute routes based on the LSDB.
Challenge Handshake Authentication Protocol
SPF algorithm
Rapid Per-VLAN Spanning Tree Plus
access link
42. A NAT term describing an IP address representing a host that resides outside the enterprise network - with the address being used in packets outside the enterprise network.
PIR
rendezvous point
configuration register
Outside Global address
43. An 802.1w RSTP port state in which the port is not forwarding or receiving; covers 802.1d port states disabled - blocking - and listening.
MaxAge (OSPF)
Data-link connection identifier
discarding state
multipath
44. A Cisco-proprietary protocol that defines how to perform authentication between an authenticator (for example - a router) and an authentication server that holds a list of usernames and passwords.
MOSPF
TACACS+
GRE
Port Aggregation Protocol
45. Software-based collection and reporting tool for data reported by NetFlow.
administrative weight
NetFlow aggregator
Inside Global address
BOOTP
46. In IPv6 - a Router Advertisement message used by an IPv6 router to send information about itself to nodes and other routers connected to that router.
authentication - authorization - and accounting
Structure of Management Information
virtual IP address
Router Advertisement
47. One of the two modes of MDRR - in which the priority queue is serviced between each servicing of the non-priority queues.
802.11a
alternate mode
isolated VLAN
link-state routing protocol
48. 64 bits at the end of an IPv6 global address - used to uniquely identify each host in a subnet.
interface ID
LSDB
GLOP addressing
dual stack
49. A possible side effect of a scheduler that performs strict-priority scheduling of a queue - which can result in lower-priority queues getting little or no service.
queue starvation
switched interface
WPA
private AS
50. Alarm Indication Signal. With T1s - the practice of sending all binary 1s on the line in reaction to problems - to provide signal transitions and allow recovery of synchronization and framing.
metric
flash updates
source-specific addresses
AIS