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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 method for how a TCP sender grows its calculated CWND variable - thereby growing the allowed window for the connection. Slow Start grows CWND at an exponential rate.
Slow Start
Internet Group Management Protocol
virtual LAN
Report Suppression mechanism
2. A category used by a policer to classify packets relative to the traffic contract. With two-color policers - these packets are considered to be above the contract; for three-color - these packets are above the Bc setting - but within the Be setting.
enable secret
PVST+
exceed
Alternate Mark Inversion
3. Context-Based Access Control.
Maximum Segment Size
DTP
DHCP snooping binding database
CBAC
4. With RIP - a per-route timer that increases until the router receives a routing update that confirms the route is still valid - upon which the timer is reset to 0. If the updates cease - the Invalid timer will grow - until reaching the timer setting
quantum value
Invalid timer
joining a group
process switching
5. The number of bytes in a queue that are removed per cycle in MDRR. Similar to byte count in the custom queuing (CQ) scheduler.
transit network (OSPF)
Per-VLAN Spanning Tree Plus
quantum value
LLQ
6. 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.
fragmentation
shared mode
priority queue
committed information rate
7. The process of taking the IP and TCP headers of a packet - compressing them - and then uncompressing them on the receiving router.
IGMPv2 Group-Specific Query
Tc
Response (SNMP)
TCP header compression
8. Voice over Frame Relay.
Forward Explicit Congestion Notification
VoFR
LCP
DVMRP
9. The low-order 4 bits of the configuration register. These bits direct a router to load either ROMMON software (boot field 0x0) - RXBOOT software (boot field 0x1) - or a full-function IOS image.
multicast scoping
LOCAL_PREF
configuration register
boot field
10. 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.
Multi-VRF CE
CoS
exceed
GLBP
11. A Cisco IOS queuing tool most notable for its automatic classification of packets into separate per-flow queues.
request-to-send/clear-to-send
static length subnet masking
RTO
weighted fair queuing
12. The original MPLS protocol used to advertise the binding (mapping) information about each particular IP prefix and associated label. It is slightly different from LDP - but functionally equivalent. See also LDP.
component route
Tag Distribution Protocol
IPCP
ABR
13. An OSPF timer that determines how long an LSA can remain in the LSDB without having heard a reflooded copy of the LSA.
NLRI
direct sequence spread spectrum
Data-link connection identifier
MaxAge (OSPF)
14. The process of successive neighboring routers exchanging LSAs such that all routers have an identical LSDB for each area to which they are attached.
modified tail drop
pruning
inner label
LSA flooding
15. Aka receiver's advertised window.
FEC
DSCP-to-threshold map
TACACS+
advertised window
16. Extensible Authentication Protocol.
Enhanced Local Management Interface
ISL
IP PBX
EAP
17. Multicast addresses that are not assigned by IANA.
frequency hopping spread spectrum
WCCP cluster
transient multicast group
Inverse ARP
18. When a PIM-SM router switches from RPT to SPT - it sends a PIM-SM Prune message for the source and the group with the RP bit set to its upstream router on the shared tree. RFC 2362 uses the notation PIM-SM (S - G) RP-bit Prune for this message.
feasible successor
PIM-SM (S -G) RP-bit Prune
peak information rate
DS3
19. The underlying algorithms associated with RIP.
Link Control Protocol
Excess
exponential weighting constant
distance vector
20. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.
graceful restart (OSPF)
IP PBX
RADIUS
public wireless LAN
21. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.
variable-length subnet masking
hardware queue
point coordination function
differentiated tail drop
22. A T1 alarm state that occurs when a device has detected a local LOF/LOS/AIS condition. The device in Red alarm state then sends a Yellow alarm signal.
Red Alarm
iBGP
VLAN Trunking Protocol
sticky learning
23. Service set identifier.
Dynamic Multipoint VPN
MULTI_EXIT_DISC (MED)
virtual IP address
SSID
24. Any other router - sharing a common data link - with which a router exchanges Hellos - and for which the parameters in the Hello pass the parameter-check process.
Network Control Protocol
active mode FTP
neighbor (OSPF)
SN
25. 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.
edge LSR
ORIGINATOR_ID
Loop Guard
LSRefresh
26. A wireless LAN physical layer that is backward compatible with 802.11b and operates at up to 54-Mbps data rates using OFDM in the 2.4-GHz band.
Inverse ARP
802.11g
Smoothed Round-Trip Time
network allocation vector
27. 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.
exponential weighting constant
NTP broadcast client
partial SPF calculation
AGGREGATOR
28. 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.
AES
anycast
encapsulation
B8ZS
29. Extended Superframe.
Protocol Independent Multicast sparse-mode routing protocol
CQ
Cisco Group Management Protocol
ESF
30. Link Access Procedure for Frame-Mode Bearer Services.
priority queuing
Dual FIFO
MD5 hash
LAPF
31. A Cisco-proprietary protocol used to dynamically negotiate whether the devices on an Ethernet segment want to form a trunk and - if so - which type (ISL or 802.1Q).
Dynamic Trunking Protocol
LSDB
MIB
Protocol Independent Multicast dense-mode routing protocol
32. A protocol - defined in RFC 2865 - 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.
RADIUS
stateful autoconfiguration
half duplex
Hello (OSPF)
33. 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.
NAT
Graft message
Retransmission Timeout
BPDU Guard
34. A BGP feature that overcomes the requirement of a full mesh of iBGP peers inside a single AS by separating the AS into multiple sub-autonomous systems.
map class
Modified Deficit Round-Robin
Context-Based Access Control
confederation
35. Secure Shell protocol used for character-oriented command-line access and configuration. A highly secure alternative to Telnet.
permanent virtual circuit
DSCP
SSH
WEP
36. A type of IPv4 and IPv6 traffic designed primarily to provide one-to-many connectivity but unlike broadcast - has the capability to control the scope of traffic distribution.
map class
multicast
broadcast domain
totally NSSA area
37. Spanning Tree Protocol.
STP
source-based distribution tree
Slow Start
RSTP
38. A router that should either permanently or temporarily not be used as a transit router. Can wait a certain time after OSPF process start - or after BGP notifies OSPF that BGP has converged - before ceasing to be a stub router.
PDU
stub router (OSPF)
FRF.8
stub router (EIGRP)
39. 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.
input event
Inverse ARP
I/G bit
DCE
40. After a host receives an IGMP Query - the amount of time (default - 10 seconds) the host has to send the IGMP Report.
internal router (OSPF)
Maximum Response Time
transit network (OSPF)
private AS
41. A Cisco IOS configuration tool for RIP and EIGRP for which the list matches routes in routing updates - and adds a defined value to the sent or received metric for the routes. The value added to the metric is the offset.
offset list
subnet broadcast address
802.1Q
shaped mode
42. 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.
Graft message
TTL scoping
transmit power
VTP pruning
43. A queuing scheduler's logic by which - if a particular queue has packets in it - those packets always get serviced next.
point coordination function
All OSPF DR Routers
COMMUNITY
strict priority
44. 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
Neighbor Type
Assert message
queue starvation
TKIP
45. Policing in which two rates are metered - and packets are placed into one of three categories (conform - exceed - or violate).
going active
dual-rate - three-color policer
DCE
backbone area (OSPF)
46. UniDirectional Link Detection.
OAM
UDLD
DMVPN
radio management aggregation
47. 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
TCP header compression
802.1Q-in-Q
Inter-Switch Link
spread spectrum
48. The process of combining multiple synchronized input signals over a single medium by giving each signal its own time slot - and then breaking out those signals.
VTP
listening state
UDLD
time-division multiplexing
49. Differentiated Services.
DiffServ
differentiated tail drop
WTD
Bootstrap Router (BSR)
50. 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.
IP SLA
AS number
NLRI
orthogonal frequency division multiplexing