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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. Digital Signal Level 3.
IP routing
DS3
full SPF calculation
WRR
2. A CBWFQ and LLQ term referring to the bandwidth on an interface that is neither reserved nor allocated via a priority command.
remaining bandwidth
CBAC
Wired Equivalent Privacy
limiting query scope (EIGRP)
3. A protection against problems caused by unidirectional links between two switches. Uses messaging between switches to detect the loop - err-disabling the port when the link is unidirectional.
802.1Q
UniDirectional Link Detection
Source-Specific Multicast (SSM)
Inside Local address
4. Policing in which a single rate is metered - and packets are placed into one of three categories (conform - exceed - or violate).
data plane
direct sequence spread spectrum
single-rate - three-color policer
pulse code modulation
5. DCE devices are one of two devices on either end of a communications circuit - specifically the device with more control over the communications. Frame Relay switches are DCE devices. DCEs are also known as data circuit-terminating equipment (DTE).
SCP
Data Set Ready
DS3
data communications equipment
6. Often used synonymously with neighbor - but with emphasis on the fact that all required parameters match - allowing routing updates to be exchanged between the routers.
infrastructure mode
adjacency (EIGRP)
distance vector
source DR
7. A multicast routing protocol whose default action is to flood multicast packets throughout a network.
dense-mode protocol
PCM
DLCI
MTU
8. A generic term that refers to the data structure used by a layer in a layered network architecture when sending data.
protocol data unit
Modular QoS CLI
RGMP
private addresses
9. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 0.
TDP
subnet zero
weight (BGP)
soft reconfiguration
10. A 3-bit field in the first 3 bits of the ToS byte in the IP header - used for QoS marking.
Measured Round-Trip Time
IP Precedence
LSU
violate category
11. With EIGRP - the metric value for the lowest-metric route to a particular subnet.
Classic IOS Firewall
Feasible Distance
DUAL
Hello (EIGRP)
12. A mapping between each DSCP value and a corresponding CoS value - often used in Cisco LAN switches when performing classification for egress queuing.
DSCP-to-CoS map
smurf attack
Protocol Independent Multicast sparse-mode routing protocol
private addresses
13. A type of AS_PATH segment consisting of an unordered list of ASNs consolidated from component subnets of a summary BGP route.
Bootstrap Router (BSR)
Forward Explicit Congestion Notification
Boot Protocol
AS_SET
14. An address type in IPv6 networks that is used only on the local link and never beyond that scope.
FD
link-local
iBGP
TCP header compression
15. 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.
maximum threshold
smurf attack
internal DSCP
ROMMON
16. Retransmission Timeout.
RTO
Join/Prune message
route reflector
AS_PATH
17. In OSPF - a router that is prepared to take over the designated router.
queue starvation
backup designated router
Slow Start
DSL
18. The process of changing the electrical characteristics on a transmission medium - based on defined rules - to represent data.
DTR
encoding
rendezvous point
UDLD
19. An 802.1d STP port state in which the port has been administratively disabled.
LSP
Multicast Open Shortest Path First
link-state advertisement
disabled state
20. Web Cache Communication Protocol.
link-state advertisement
WCCP
orthogonal frequency division multiplexing
DROther
21. With shaping - the number of bits allowed to be sent every Tc. Also defines the size of the token bucket when Be = 0.
CEF
Committed Burst
source-specific addresses
quantum value
22. Point-to-Point Protocol.
AS_PATH length
PPP
I/G bit
Dynamic ARP Inspection
23. A BGP path attribute that is communicated throughout a single AS to signify which route of multiple possible routes is the best route to be taken when leaving that AS. A larger value is considered to be better.
LOCAL_PREF
generic routing encapsulation
exponential weighting constant
finish time
24. A Cisco IOS feature that provides reporting information to a NetFlow aggregator based on traffic flows.
NetFlow
LxPDU
Data Terminal Ready
LSP segment
25. An IOS feature in which multiple routing tables and routing forwarding instances exist in a single router - with interfaces being assigned to one of the several VRFs. This feature allows separating of routing domains inside a single router platform.
Set (SNMP)
VLAN Trunking Protocol
limiting query scope (EIGRP)
Multi-VRF CE
26. A 48-bit address that is calculated from a Layer 3 multicast address by using 0x0100.5E as the multicast vendor code (OUI) for the first 24 bits - always binary 0 for the 25th bit - and copying the last 23 bits of the Layer 3 multicast address.
conform
Context-Based Access Control
multicast MAC address
maximum reserved bandwidth
27. A mechanism in which VLAN information can extend over another set of 802.1Q trunks by tunneling the original 802.1Q traffic with another 802.1Q tag. It allows a service provider to support transparent VLAN services with multiple customers - even if t
802.1Q-in-Q
LOCAL_AS
CBAC
Get (SNMP)
28. The process of taking routes known through one routing protocol and advertising those routes with another routing protocol.
DHCP snooping binding database
route redistribution
Digital Signal Level 0
IOS Intrusion Prevention System (IPS)
29. Internet Group Management Protocol.
Garbage timer
enable secret
IGMP
subnet
30. A type of AS_PATH segment consisting of an ordered list of ASNs through which the route has been advertised.
AS_SEQUENCE
request-to-send/clear-to-send
E1
radio management aggregation
31. The range 239.0.0.0 through 239.255.255.255 that IANA has assigned for use in private multicast domains.
Slow Start
no drop
private AS
administratively scoped addresses
32. An 802.1w RSTP port state in which the port is not forwarding or receiving; covers 802.1d port states disabled - blocking - and listening.
Point-to-Point Protocol
discarding state
IP SLA
cross-over cable
33. An EIGRP message that is used to acknowledge reliable EIGRP messages - namely Update - Query - and Reply messages. Acks do not require an Ack.
Garbage timer
Rapid Per-VLAN Spanning Tree Plus
NTP client mode
Ack (EIGRP)
34. In wireless LANs - a mechanism that counters issues related to RF interference by dividing a larger 802.11 data frame into smaller frames that are sent independently to the destination. See also LFI.
solicited node multicast
NS
classful routing
fragmentation
35. EIGRP jargon meaning that EIGRP has placed a route into active status.
label switched path
going active
default route
internal DSCP
36. A term referring to the process of applying the Message Digest 5 (MD5) algorithm to a string - resulting in another value. The original string cannot be easily computed even when the hash is known - making this process a strong method for storing pas
Cell Loss Priority
wireless LAN controller
CWND
MD5 hash
37. A network/subnet to which only one OSPF router is connected.
stub network (OSPF)
NA
well-known mandatory
LSR
38. With EIGRP - a timer started when a reliable (to be acknowledged) message is transmitted. For any neighbor(s) failing to respond in its RTO - the RTP protocol causes retransmission. RTO is calculated based on SRTT.
T1
Retransmission Timeout
AS_PATH
IEEE 802.1X
39. The MD5-encoded password defined by the enable secret command.
TCP SYN flood
Forward Explicit Congestion Notification
enable secret
WLSE
40. 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 remove the attribute before advertisi
Area Border Router
optional nontransitive
Bipolar 8 Zero Substitution
Maximum Response Time
41. The PDU used by a particular layer of a networking model - with x defining the layer.
Layer x PDU
multicast IP address structure
promiscuous port
internal BGP
42. 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).
supplicant
Management Information Base
terminal history
designated router (OSPF)
43. Backup designated router.
LOS
MLS
BDR
PIM-SM (S -G) RP-bit Prune
44. One of the two modes of MDRR - in which the priority queue is serviced between each servicing of the non-priority queues.
Wi-Fi Protected Access
alternate mode
graceful restart (OSPF)
variable-length subnet masking
45. A BGP term referring to an IP prefix and prefix length.
low-latency queuing
network layer reachability information
VTP pruning
CoS
46. Cisco Group Management Protocol.
generic routing encapsulation
passive (EIGRP)
CEF
CGMP
47. The number of beacons that governs how often multicast frames are sent over a wireless LAN.
DTIM interval
AS number
Label Distribution Protocol
MTU
48. Defined in RFC 2289 - a mechanism by which a shared key and a secret key together feed into a hash algorithm - creating a password that is transmitted over a network. Because the shared key is not reused - the hash value is only valid for that indivi
one-time password
MD5 hash
DSCP-to-CoS map
Forwarding Information Base
49. The mandatory contention-based 802.11 access protocol that is also referred to as CSMA/CA.
Port Aggregation Protocol
subnet number
distributed coordination function
downstream router
50. A type of OSPF packet used to discover neighbors - check for parameter agreement - and monitor the health of another router.
Hello (OSPF)
infrastructure mode
man-in-the-middle attack
Smoothed Round-Trip Time