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CCIE Vocab
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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. An MPLS VPN term referring to a router at a customer site that does not implement MPLS.
nested policy maps
customer edge
Access Control Server
authentication - authorization - and accounting
2. VLAN Trunking Protocol.
QV
Differentiated Services
Layer 2 protocol tunneling
VTP
3. The portion of PPP focused on features that are unrelated to any specific Layer 3 protocol.
Link Control Protocol
totally NSSA area
encapsulation replication
single-rate - three-color policer
4. The practice of defining boundaries that determine how far multicast traffic will travel in your network.
multicast scoping
Maximum Segment Size
Get (SNMP)
enable secret
5. A packet-scheduling algorithm used in Cisco switches that provides similar behavior to CBWFQ in shared mode and polices in shaped mode.
Dijkstra Algorithm
Hello timer
shaped round-robin
custom queuing
6. With RIP - a per-route timer - which is reset and grows with the Invalid timer. When the Flush timer mark is reached (default 240 seconds) - the router removes the route from the routing table - and now accepts any other routes about the failed subne
ESF
Control Plane Policing (CoPP)
Flush timer
CoS
7. The operating mode of shaped round-robin that provides behavior like CBWFQ with bandwidth allocated between different traffic classes by a relative amount rather than absolute percentage of the available bandwidth.
quartet
shared mode
PQ
RMON event
8. Label Distribution Protocol.
IP Control Protocol
LDP
Source-Specific Multicast (SSM)
MSS
9. A routing protocol feature by which the routing update includes only routes that have changed - rather than include the entire set of routes.
partial update
passive mode FTP
Alternate Mark Inversion
dual token bucket
10. IP routing The simplest MPLS application - involving the advertisement of an IGP to learn IP routes - and LDP or TDP to advertise labels.
VTP pruning
isolated VLAN
MPLS unicast
Multicast Listener Discovery
11. The process of taking the IP - UDP - and RTP headers of a voice or video packet - compressing them - and then uncompressing them on the receiving router.
Yellow Alarm
Feasible Distance
confederation identifier
RTP header compression
12. An EIGRP router's reaction to an input event - leading to the use of a feasible successor or going active on a route.
Inverse ARP
dual token bucket
local computation
Wired Equivalent Privacy
13. A message sent by the multicast router - by default every 60 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.
authentication - authorization - and accounting
Wired Equivalent Privacy
source-specific addresses
IGMPv1 Host Membership Query
14. AS number. A number between 1 and 64 -511 (public) and 64 -512 and 65 -535 (private) assigned to an AS for the purpose of identifying a specific BGP domain.
enable secret
Forwarding Equivalence Class
ASN
PPP
15. Provides dynamic inspection of traffic as it traverses the router. It uses Context-Based Access Control (CBAC) to look deeper into a packet than an access list can. It tracks outbound traffic and dynamically allows in responses to that traffic.
DTE
Classic IOS Firewall
MPLS Experimental (EXP)
route map
16. Sent by a PIM-DM or PIM-SM router when it receives a multicast packet for a group on a LAN interface that is in the outgoing interface list for the group; includes the administrative distance of the unicast routing protocol used to learn the network
request-to-send/clear-to-send
Garbage timer
Assert message
Digital Signal Level 1
17. Any OSPF neighbor for which the database flooding process has completed.
NS
InARP
Database Description
adjacent (OSPF)
18. In IP routing - a term referring to the building of IP routing tables by IP routing protocols.
Alternate state
LOCAL_PREF
routing black hole
control plane
19. Autonomous System Boundary Router. An OSPF router that redistributes routes from some other source into OSPF.
transient multicast group
TDP
ASBR
MQC
20. A serial-line encoding standard like B8ZS - but with each set of four consecutive 0s being changed to include a Bipolar Violation to maintain synchronization.
Multilink PPP
route redistribution
Access Control Server
High Density Binary 3
21. PIM-SM is a method of routing multicast packets that requires some intelligence in the network about the locations of receivers so that multicast traffic is not flooded into areas with no receivers. PIM Sparse Mode gets its name from the assumption t
overloading
WRR
Smoothed Round-Trip Time
Protocol Independent Multicast sparse-mode routing protocol
22. A Frame Relay traffic shaping feature during which the shaping rate is reduced when the shaper notices congestion through the receipt of BECN or ForeSight messages.
adaptive shaping
Access Control Entry
NO_EXPORT
802.1Q
23. Jargon used to refer to the first of two buckets in the dual token bucket model; its size is Bc.
NAT-PT
IGMPv3 Host Membership Report
Bc bucket
LSU
24. A type of AS_PATH segment consisting of an unordered list of ASNs consolidated from component subnets of a summary BGP route.
same-layer interaction
Route Tag field
native VLAN
AS_SET
25. VTP process that prevents the flow of broadcasts and unknown unicast Ethernet frames in a VLAN from being sent to switches that have no ports in that VLAN.
AIS
DSL
data terminal equipment
VTP pruning
26. A time value that each wireless station must set based on the duration value found in every 802.11 frame. The time value counts down and must be equal to zero before a station is allowed to access the wireless medium. The result is a collision-avoida
network allocation vector
FRF
CQ
Frame Relay LFI Using Multilink PPP (MLP)
27. When a wireless station connects to an access point - the access point assigns an association ID (AID) to the station. Various protocols - such as power-save mode - make use of the association ID.
RPVST+
association ID
FT
software queue
28. The speed at which the access link is clocked. This choice affects the price of the connection and many aspects of traffic shaping and policing - compression - quality of service - and other configuration options.
PPPoE
access rate
IP SLA responder
Per-VLAN Spanning Tree Plus
29. A type of AS_PATH segment consisting of an ordered list of ASNs through which the route has been advertised.
AS_SEQUENCE
storm control
route redistribution
authentication
30. Another name for Superframe.
fast switching
D4 framing
split horizon
authentication method
31. The first 48 bits of an IPv6 global address - used for efficient route aggregation.
Wi-Fi Protected Access
global routing prefix
Message Digest 5
internal DSCP
32. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local AS.
NO_EXPORT
OAM
monitor session
VRRP
33. From one perspective - DTE devices are one of two devices on either end of a communications circuit - specifically the device with less control over the communications. In Frame Relay - routers connected to a Frame Relay access link are DTE devices.
EF
data terminal equipment
NCP
inner label
34. An SPF calculation for which a router does not need to run SPF for any LSAs inside its area - but instead runs a very simple algorithm for changes to LSAs outside its own area.
EAPoL
Goodbye (EIGRP)
EF
partial SPF calculation
35. 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
proxy ARP
smurf attack
PAP
NEXT_HOP
36. A type of OSPF packet used to acknowledge LSU packets.
optional transitive
permanent virtual circuit
Link-State Acknowledgment
MOSPF
37. An optimized Layer 3 forwarding path through a router or switch. CEF optimizes routing table lookup by creating a special - easily searched tree structure based on the contents of the IP routing table. The forwarding information is called the Forward
Cisco Express Forwarding
RP
neighbor (OSPF)
private AS
38. This term has two BGP-related definitions. First - it is the normal process in which a router - before sending an Update to an eBGP peer - adds its local ASN to the beginning of the AS_PATH path attribute. Second - it is the routing policy of purpose
AS_PATH prepending
Area Border Router
label binding
BGP table
39. WRED compares this setting to the average queue depth to decide whether packets should be discarded. No packets are discarded if the average queue depth falls below this minimum threshold.
minimum threshold
Digital Signal Level 1
actual queue depth
Reverse ARP
40. Refers to how a router views a BGP peer relationship - in which the peer is in the same AS.
IP PBX
Join/Prune message
IP SLA responder
internal BGP
41. Static length subnet masking.
TACACS+
autonomous system
SLSM
RTP header compression
42. A method for how a TCP sender grows its calculated CWND variable - thereby growing the allowed window for the connection. Congestion Avoidance grows CWND linearly.
DHCP
Congestion Avoidance
RF channel
Prune Override
43. Another name for 802.1Q-in-Q. See 802.1Q-in-Q.
passive (EIGRP)
IOS Intrusion Prevention System (IPS)
Virtual Router Redundancy Protocol
Layer 2 protocol tunneling
44. Defined in RFC 1293 - this protocol allows a Frame Relay-attached device to react to a received LMI "PVC up" message by announcing its Layer 3 addresses to the device on the other end of the PVC.
single-rate - two-color policer
Neighbor Type
Inverse ARP
disabled state
45. A term referring to the processes and bits in the data stream used to manage the Telco TDM hierarchy.
MPLS Experimental (EXP)
Clear To Send
UniDirectional Link Detection
Operation - Administration - and Maintenance
46. A single address in each subnet for which packets sent to this address will be broadcast to all hosts in the subnet. It is the highest numeric value in the range of IP addresses implied by a subnet number and prefix/mask.
OOF
subnet broadcast address
Maximum Segment Size
stateful autoconfiguration
47. A calculation of the length of the AS_PATH PA - which includes 1 for each number in the AS_SEQ - 1 for an entire AS_SET segment - and possibly other considerations.
modified tail drop
IEEE 802.1X
Password Authentication Protocol
AS_PATH length
48. Multilink PPP.
MLP
Data-link connection identifier
Flush timer
EF
49. The IEEE standardized protocol for VLAN trunking.
ATOMIC_AGGREGATE
802.1Q
Forward Delay
LSAck
50. The first 4 bits of the first octet must be 1110. The last 28 bits are unstructured.
NCP
multicast IP address structure
classful routing
D4 framing
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