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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. The first 4 bits of the first octet must be 1110. The last 28 bits are unstructured.
joining a group
SPAN
multicast IP address structure
Frame Relay LFI Using Multilink PPP (MLP)
2. An IPv6 address type that is used by a number of hosts in a network that are providing the same service. Hosts accessing the service are routed to the nearest host in an anycast environment based on routing protocol metrics.
authentication - authorization - and accounting
Digital Signal Level 0
anycast
Access Control Server
3. A WFQ term referring to its drop logic - which is similar to tail-drop behavior.
OOF
Port Address Translation
modified tail drop
Dynamic Multipoint VPN
4. A term used with Cisco LAN switches - referring to a queue treated with strict-priority scheduling.
expedite queue
adjacency table
Link Control Protocol
Context-Based Access Control
5. The two computers use a protocol with which to communicate with the same layer on another computer. The protocol defined by each layer uses a header that is transmitted between the computers to communicate what each computer wants to do.
TTL
totally NSSA area
IP forwarding
same-layer interaction
6. The second byte of the IP header - formerly known as the ToS byte and redefined by DiffServ.
LSDB
DS field
BGP table
same-layer interaction
7. Exterior Gateway Protocol.
EGP
RXBOOT
TTL scoping
CBWFQ
8. Link-State Refresh. A timer that determines how often the originating router should reflood an LSA - even if no changes have occurred to the LSA.
LSRefresh
Link-State Acknowledgment
Cell Loss Priority
PHB
9. With EIGRP - the route to each destination for which the metric is the lowest of all known routes to that network.
successor route
full duplex
Exterior Gateway Protocol
shaped round-robin
10. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.
Inform
maximum threshold
learning state
NO_EXPORT_SUBCONFED
11. EAP over LAN.
FRF.11-c
Class-Based Weighted Fair Queuing
EAPoL
Layer 2 protocol tunneling
12. Priority queue and priority queuing.
PQ
downstream router
IGMPv1 Host Membership Query
InARP
13. 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
Dijkstra Algorithm
Dual FIFO
Forward Explicit Congestion Notification
virtual LAN
14. In switch port security - the process whereby the switch dynamically learns the MAC address(es) of the device(s) connected to a switch port - and then adds those addresses to the running configuration as allowed MAC addresses for port security.
Class-Based Marking
MPLS TTL propagation
map class
sticky learning
15. An optional contention-free 802.11 access protocol that requires the access point to poll wireless stations before they are able to send frames. Not commonly implemented.
point coordination function
multicasting
policy map
process switching
16. The number of bytes in a queue that are removed per cycle in MDRR. Similar to byte count in the custom queuing (CQ) scheduler.
quantum value
Dynamic ARP Inspection
Forwarding Information Base
Source-Specific Multicast (SSM)
17. An MPLS VPN term referring to any LSR that connects to customers to support the forwarding of unlabeled packets - as well as connecting to the MPLS network to support labeled packets - thereby making the LSR be on the edge between the provider and th
provider edge
Wired Equivalent Privacy
weighted fair queuing
PVST+
18. 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.
High Density Binary 3
root port
LMI
penultimate hop popping (PHP)
19. A network/subnet to which only one OSPF router is connected.
Link Access Procedure for Frame-Mode Bearer Services
stub network (OSPF)
BSR
Reliable Transport Protocol
20. A Cisco switch feature that permits limiting traffic arriving at switch ports by percentage or absolute bandwidth. Separate thresholds are available per port for unicast - multicast - and broadcast traffic.
LOF
storm control
PCM
outer label
21. A local Cisco-proprietary BGP setting that is not advertised to any peers. A larger value is considered to be better.
weight (BGP)
Trap (SNMP)
ELMI
VRRP Master router
22. Virtual LAN.
encapsulation replication
224.0.0.2
Forwarding Equivalence Class
VLAN
23. Committed information rate.
Maxage timer (STP)
CIR
association ID
Classless IP Addressing
24. A mechanism for conserving battery power in wireless stations. The access point buffers data frames destined to sleeping stations - which wake periodically to learn from information in the beacon frame whether or not data frames are waiting for trans
priority queuing
power-save mode
LZS
ISL
25. In shaping and policing - the definition of parameters that together imply the allowed rate and bursts.
Forward Delay
Neighbor Advertisement
Be
traffic contract
26. An 802.1d STP transitory port state in which the port does not send or receive frames - and does not learn MAC addresses - but does wait for STP convergence and for CAM flushing by the switches in the network.
class map
FRF
listening state
time-division multiplexing
27. Reduces the bandwidth necessary for radio management information - such as access point status messages - that is sent across the network by eliminating redundant management information.
GetNext
Rapid Per-VLAN Spanning Tree Plus
shared mode
radio management aggregation
28. A table inside a router that holds the path attributes and NLRI known by the BGP implementation on that router.
BGP table
RID
Resource Reservation Protocol (RSVP)
IGMPv3 Host Membership Report
29. A commonly used name for Multi-VRF CE.
summary route
Hello (OSPF)
Data Set Ready
VRF Lite
30. With private VLANs - a port that can send and receive frames with all other ports in the private VLAN.
full drop
promiscuous port
Forward Explicit Congestion Notification
Multicast Source Discovery Protocol (MSDP)
31. A term relating to Cisco LAN switch tail-drop logic - in which multiple tail-drop thresholds may be assigned based on CoS or DSCP - resulting in some frames being discarded more aggressively than others.
Multicast Open Shortest Path First
VLAN filtering
data plane
differentiated tail drop
32. A BGP router that - unknown to it - is aided by a route reflector server to cause all iBGP routers in an AS to learn all eBGP-learned prefixes.
GLBP
Per-Hop Behavior
route reflector client
Layer 2 payload compression
33. The process of taking a PDU from some other source and placing a header in front of the original PDU - and possibly a trailer behind it.
well-known mandatory
encapsulation
BGP Update
Bc bucket
34. 16 bits between the interface ID and global routing prefix in an IPv6 global address - used for subnet assignment inside an enterprise.
CEF
subnet ID
policy routing
joining a group
35. 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.
ASN
community VLAN
MPD
Internet Group Management Protocol
36. The router that will receive the group traffic when a multicast router forwards group traffic to another router.
MD5
downstream router
LOF
MLS
37. 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.
multicast MAC address
route reflector
Join/Prune message
sequence number (OSPF)
38. 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.
CB Marking
RSPAN
socket
egress PE
39. Used by a policer to classify packets relative to the traffic contract. These packets are considered to be above the traffic contract in all cases.
VLAN
IGMP snooping
violate category
PAT
40. The RFC 1997 name for the reserved COMMUNITY path attribute known to Cisco IOS as LOCAL_AS. (See LOCAL_AS.)
NO_EXPORT_SUBCONFED
partial update
well-known mandatory
TCP SYN flood
41. 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.
Voice over Frame Relay
regular expression
Wired Equivalent Privacy
Holddown timer
42. In OSPF - a router that is prepared to take over the designated router.
backup designated router
AS_PATH
passive (EIGRP)
FRF.5
43. A type of logic for how a router uses a default route. When a default route exists - and the class A - B - or C network for the destination IP address does not exist in the routing table - the default route is used. If any part of that classful netwo
Maxage timer (STP)
classful routing
DMVPN
LFI
44. Policing in which two rates are metered - and packets are placed into one of three categories (conform - exceed - or violate).
VLAN
infrastructure mode
single-rate - two-color policer
dual-rate - three-color policer
45. 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
access link
trunking
weighted tail drop
46. In BGP - a configuration construct in which multiple neighbors' parameters can be configured as a group - thereby reducing the length of the configuration. Additionally - BGP performs routing policy logic against only one set of Updates for the entir
RPF check
peer group
PortFast
Network Based Application Recognition
47. Source-specific multicast.
RITE
SSM
PIM-SM
optional transitive
48. The difference between the measured signal power and the noise power that a particular receiver sees at a given time. Higher SNRs generally indicate better performance.
passive mode FTP
Ready To Send
PIM-SM
signal-to-noise ratio
49. A PPP feature used to load balance multiple parallel links at Layer 2 by fragmenting frames - sending one frame over each of the links in the bundle - and reassembling them at the receiving end of the link.
Multilink PPP
supplicant
isolated VLAN
configuration register
50. 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
AS_PATH
DMVPN
2Way (OSPF)
Inform