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CCIE Vocab
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certifications
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ccie
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it-skills
Instructions:
Answer 50 questions in 15 minutes.
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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. Weighted random early detection.
collision domain
Neighbor Advertisement
WRED
Zone-based IOS firewall
2. Provider router.
EAP
P router
regular expression
Differentiated Services Code Point
3. A state for a route in an EIGRP topology table that indicates that the router is actively sending Query messages for this route - attempting to validate and learn the current best route to that subnet.
SSThresh
exceed
active (EIGRP)
DCE
4. Classless interdomain routing.
maximum reserved bandwidth
CIDR
receiver's advertised window
generic routing encapsulation
5. Defines a particular behavior for FTP regarding the establishment of TCP data connections. In passive mode - an FTP server uses the FTP PORT command - over the FTP control connection - to tell the FTP client the port on which the server will be liste
passive mode FTP
Excess
2Way (OSPF)
RD
6. An E-LSR in an MPLS VPN network whose role in a particular discussion is to receive labeled packets from other LSRs and then forward the packets as unlabeled packets to CE routers.
blocking state
monitor session
egress PE
Protocol Independent Multicast dense-mode routing protocol
7. Used by RRs to denote the RID of the iBGP neighbor that injected the NLRI into the AS.
aggregate route
ORIGINATOR_ID
service policy
Network Address Translation
8. Forwarding Information Base.
counting to infinity
LAPF
FIB
Maximum Segment Size
9. A type of spread spectrum that spreads RF signals over the frequency spectrum by transmitting the signal at different frequencies according to a hopping pattern. One of the original 802.11 physical layers used FHSS to offer data rates of 1 and 2 Mbps
DAI
frequency hopping spread spectrum
PIM-SM
DSR
10. A communication protocol between hosts and a multicast router by which routers learn of which multicast groups' packets need to be forwarded onto a LAN.
control plane
egress PE
process switching
Internet Group Management Protocol
11. A BGP message that includes withdrawn routes - path attributes - and NLRI.
Class-Based Weighted Fair Queuing
BGP Update
egress PE
virtual circuit
12. Reliable Transport Protocol.
RTP
successor route
Maximum Response Time
partial SPF calculation
13. A commonly used name for Multi-VRF CE.
VRF Lite
successor route
Bc
6to4
14. Link-state advertisement.
LSA
external route
Digital Signal Level 3
Multicast Source Discovery Protocol (MSDP)
15. A Cisco-proprietary LMI protocol - implemented in Cisco WAN switches and routers - through which the switch can inform the router about parameters for each VC - including CIR - Bc - and Be.
802.11g
IGMPv1 Host Membership Query
fraggle attack
Enhanced Local Management Interface
16. A BGP feature by which a router learns iBGP routes - and then forwards them to other iBGP peers - reducing the required number of iBGP peers while also avoiding routing loops.
ATOMIC_AGGREGATE
route reflector
multicast MAC address
MTU
17. An STP timer that dictates how long a switch should wait when it ceases to hear Hellos.
TTL scoping
Maxage timer (STP)
stub router (EIGRP)
optional transitive
18. The characterization of how far EIGRP Query messages flow away from the router that first notices a failed route and goes active for a particular subnet.
spread spectrum
one-time password
tail drop
query scope (EIGRP)
19. The IPv6 protocol used for the discovery of which hosts are listening for which multicast IP addresses for IPv6.
Control Plane Policing (CoPP)
tail drop
TCP SYN flood
Multicast Listener Discovery
20. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame.
port security
subnet zero
request-to-send/clear-to-send
Loss of Frame
21. Voice over Frame Relay.
root port
VoFR
Web Cache Communication Protocol
TCP flags
22. A 3-bit field in the first 3 bits of the ToS byte in the IP header - used for QoS marking.
IP Precedence
LDP
IOS Intrusion Prevention System (IPS)
source registration
23. Aka Rapid Per-VLAN Spanning Tree Plus.
weight (BGP)
totally NSSA area
Graft Ack message
RPVST+
24. The process of running the SPF algorithm against the LSDB - with the result being the determination of the current best route(s) to each subnet.
LSP
SPF calculation
granted window
priority queuing
25. A Cisco IOS queuing tool most notable for its automatic classification of packets into separate per-flow queues.
weighted fair queuing
input event
query scope (EIGRP)
MPLS TTL propagation
26. On a serial cable - the pin lead set by the DCE to imply that the DCE is ready to signal using pin leads
Data Carrier Detect
Data Set Ready
QoS pre-classification
LLQ
27. An early standard from AT&T for encoding analog voice as a digital signal for transmission over a TDM network. PCM requires 64 kbps - and is the basis for the DS0 speed.
pulse code modulation
IP Precedence
Join/Prune message
IGMP snooping
28. With EIGRP - a route that is not a successor route - but that meets the feasibility condition; can be used when the successor route fails - without causing loops.
ELMI
DD
variance
feasible successor
29. A group of devices on one or more LANs that are configured (using management software) so that they can communicate as if they were attached to the same wire - when - in fact - they are located on a number of different LAN segments. Because VLANs are
link-state advertisement
Loop Guard
Message Digest 5
virtual LAN
30. A state variable kept by a router for each known neighbor or potential neighbor.
neighbor state
route reflector client
stateful autoconfiguration
IEEE 802.1X
31. In OSPF - a router that is prepared to take over the designated router.
VRF Lite
PQ
backup designated router
policing rate
32. Request-to-send/clear-to-send.
sequence number (WFQ)
RTS/CTS
Enhanced Local Management Interface
RA
33. A table inside a router that holds the path attributes and NLRI known by the BGP implementation on that router.
PIM Hello message
Bipolar 8 Zero Substitution
BGP table
service policy
34. A Cisco-proprietary protocol - used by LAN switches to communicate VLAN configuration.
iBGP
enable password
confederation eBGP peer
VLAN Trunking Protocol
35. With some routing protocols - the time period between successive Hello messages.
upstream router
backup designated router
hello interval
source-based distribution tree
36. A feature of Ethernet NICs. When the NIC transmits an electrical signal - it "loops" the transmitted electrical current back onto the receive pair. By doing so - if another NIC transmits a frame at the same time - the NIC can detect the overlapping r
loopback circuitry
Cell Loss Priority
RADIUS
dual stack
37. Retransmission Timeout.
RTO
shared mode
promiscuous port
SNMP agent
38. An EIGRP message that identifies neighbors - exchanges parameters - and is sent periodically as a keepalive function. Hellos do not require an Ack.
Tc
service set identifier
Hello (EIGRP)
wireless LAN controller
39. In BGP - a set of routers inside a single administrative authority - grouped together for the purpose of controlling routing policies for the routes advertised by that group to the Internet.
Border Gateway Protocol
autonomous system
full update
EAP over LAN
40. The feature in a Cisco IOS device by which a terminal session's previously typed commands are remembered - allowing the user to recall the old commands to the command line through a simple key sequence (for example - the up-arrow key).
local computation
MIB
dense-mode protocol
terminal history
41. The innermost MPLS header in an packet traversing an MPLS VPN - with the label value identifying the forwarding details for the egress PE's VRF associated with that VPN.
Retransmission Timeout
LOF
VPN label
Bc bucket
42. A routing protocol feature by which the routing update includes the entire set of routes - even if some or all of the routes are unchanged.
full update
differentiated tail drop
EAP
IGMP snooping
43. 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.
LDP
Wi-Fi Protected Access
Dead Time/Interval
Graft message
44. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.
custom queuing
source DR
request-to-send/clear-to-send
provider router
45. A name used for DS1 lines inside the European TDM hierarchy.
STP
single-rate - two-color policer
IPCP
E1
46. The multicast IP address 224.0.0.6 - listened for by DR and BDR routers.
maximum transmission unit
optional transitive
All OSPF DR Routers
SN
47. An 802.11 frame that access points or stations in ad hoc networks send periodically so that wireless stations can discover the presence of a wireless LAN and coordinate use of certain protocols - such as power-save mode.
partial update
terminal history
beacon
VRF Lite
48. A method for optimizing the flow of multicast IP packets passing through a LAN switch. The switch using IGMP snooping examines IGMP messages to determine which ports need to receive traffic for each multicast group.
LSRefresh
subnet ID
minimum CIR
IGMP snooping
49. Temporal Key Integrity Protocol.
TKIP
Neighbor Type
TTL
WCCP cluster
50. An intrusion detection system that safeguards the wireless LAN from malicious and unauthorized access.
aggregatable global unicast address
distribution list
6to4
Wireless LAN Threat Defense Solution
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