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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. Variable-length subnet masking.
VLSM
link-state database
IGMP
CDPCP
2. A method of applying a mathematical formula - with input including a private key - the message contents - and sometimes a shared text string - with the resulting digest being included with the message. The sender and the receiver perform the same mat
VRF Lite
discarding state
Assert message
Message Digest 5
3. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.
cross-over cable
IGMPv3 Host Membership Query
Out of Frame
VC
4. Regeneration of the Layer 2 encapsulation removed from frames forwarded in a SPAN session.
LLQ
Auto-RP
PPP
encapsulation replication
5. Data Terminal Ready.
Dynamic ARP Inspection
DTR
router ID
CE
6. 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.
stub router (OSPF)
SCP
minimum threshold
224.0.0.5
7. Feasible distance.
prefix
224.0.0.2
FD
direct sequence spread spectrum
8. A serial-line encoding standard that sends alternating positive and negative 3-volt signals for binary 1 - and no signal (0 V) for binary 0.
Alternate Mark Inversion
Loss of Frame
LxPDU
private addresses
9. Uses Modular QoS CLI to control the amount and type of traffic handled by the router or switch control plane. Class maps identify traffic types - and then a service policy applied to the device control plane sets actions for each type of traffic.
RTO
Control Plane Policing (CoPP)
VLAN
straight-through cable
10. A switch feature that examines incoming frames - comparing the source IP and MAC addresses to the DHCP snooping binding database - filtering frames whose addresses are not listed in the database for the incoming interface.
PQ
subnet ID
IP Source Guard
distributed coordination function
11. Peak information rate.
PIR
K value
policy map
minimum CIR
12. Password Authentication Protocol.
Frame Relay LFI Using Multilink PPP (MLP)
ToS byte
split horizon
PAP
13. A BGP path attribute that allows routers in one AS to set a value and advertise it into a neighboring AS - impacting the decision process in that neighboring AS. A smaller value is considered better. Also called the BGP metric.
MULTI_EXIT_DISC (MED)
boot field
classless routing
Neighbor Type
14. An MPLS data structure used for forwarding labeled packets. The LFIB lists the incoming label - which is compared to the incoming packet's label - along with forwarding instructions for the packet.
variance
LOF
virtual link
Label Forwarding Information Base
15. Message sent by a PIM-DM router to its upstream router asking to quickly restart forwarding the group traffic; sent using the unicast address of the upstream router.
Maximum Segment Size
Inter-Switch Link
SVC
Graft message
16. Jargon referring to a policer action through which - instead of discarding an out-of-contract packet - the policer marks a different IPP or DSCP value - allowing the packet to continue on its way - but making the packet more likely to be discarded la
Source-Specific Multicast (SSM)
marking down
no drop
Extensible Authentication Protocol
17. A term generally describing characteristics about BGP paths that are advertised in BGP Updates.
Cisco Express Forwarding
DS field
802.1Q
path attribute
18. Timer An STP timer that dictates how long a port should stay in the listening state and the learning state.
frequency hopping spread spectrum
Classless IP Addressing
Forward Delay
Hello (OSPF)
19. Source-specific multicast.
SSM
ELMI
Differentiated Services
RSTP
20. Internet Group Management Protocol.
blocking state
IGMP
Expedited Forwarding
active scanning
21. The operating mode of shaped round-robin that provides a low-latency queue with policing.
SSID
shaped mode
Query (EIGRP)
alternate mode
22. An OSPF external route for which internal OSPF cost is not added to the cost of the route as it was redistributed into OSPF.
neighbor (EIGRP)
E2 route (OSPF)
AF
partial SPF calculation
23. Records client authentication and roaming events - which are sent to the CiscoWorks Wireless LAN Solution Engine (WLSE) to monitor client associations to specific access points.
client tracking
summary route
GLBP
hello interval
24. An 802.1w RSTP port state in which the port is an alternative Designated Port on some LAN segment.
PVC
VoFR
counting to infinity
backup state
25. Excess Burst.
Be
Forwarding Information Base
Password Authentication Protocol
ISL
26. Allows the router to act as an inline IPS - doing deep packet inspection.
NLRI
infrastructure mode
LSDB
IOS Intrusion Prevention System (IPS)
27. Advanced Encryption Standard A superior encryption mechanism that is part of the 802.11i standard and has much stronger security than TKIP.
AES
sub-AS
IPv6
Virtual Routing and Forwarding table
28. An FRF standard for Frame Relay-to-ATM Service Interworking in which one DTE uses Frame Relay and one uses ATM.
FRF.8
weighted tail drop
Area Border Router
broadcast subnet
29. The most significant bit in the most significant byte of an Ethernet MAC address - its value implies that the address is a unicast MAC address (binary 0) or not (binary 1).
I/G bit
Inside Global address
Message Digest 5
regular expression
30. The process of taking the payload inside a Layer 2 frame - including the headers of Layer 3 and above - compressing the data - and then uncompressing the data on the receiving router.
transit network (OSPF)
NTP
Fast Secure Roaming
Layer 2 payload compression
31. 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.
distance vector
cross-over cable
multicast
storm control
32. 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.
pruning
External BGP
access rate
224.0.0.2
33. A TCP variable that defines the largest number of bytes allowed in a TCP segment's Data field. The calculation does not include the TCP header. With a typical IP MTU of 1500 bytes - the resulting default MSS would be 1460. TCP hosts must support an M
IP SLA
WRR
network layer reachability information
Maximum Segment Size
34. A term used in this book to refer to a route that is included in a larger summary route.
source registration
Operation - Administration - and Maintenance
shared mode
component route
35. The SNMP specifications - standardized in RFCs - defining the rules by which SNMP MIB variables should be defined.
VPN label
Cisco Group Management Protocol
Access Control Server
Structure of Management Information
36. A vendor consortium that formerly worked to further Frame Relay common vendor standards.
stub router (EIGRP)
active scanning
Frame Relay Forum
ATOMIC_AGGREGATE
37. Controls the distribution of multicast traffic for the private multicast address range 239.0.0.0 to 239.255.255.255 by configuring a filter and applying it on the interfaces.
classless routing
administrative scoping
differentiated tail drop
PAP
38. Voice over Frame Relay.
LACP
local computation
SPF algorithm
VoFR
39. A message sent by a router - after receiving a Leave message from a host - to determine whether there are still any active members of the group. The router uses the group address as the destination address.
Common Spanning Tree
isolated VLAN
IGMPv2 Group-Specific Query
private AS
40. An 802.1w RSTP port state in which the port is not the Root Port but is available to become the root port if the current root port goes down.
Alternate state
interface ID
terminal history
PHP
41. The second most significant bit in the most significant byte of an Ethernet MAC address - a value of binary 0 implies that the address is a Universally Administered Address (UAA) (also known as Burned-In Address [BIA]) - and a value of binary 1 impli
no drop
smurf attack
public wireless LAN
U/L bit
42. In shaping and policing - commonly used to refer to the shaping or policing rate. For WAN services - a common reference to the bit rate defined in the WAN service business contract for each VC.
SRTT
Link Aggregation Control Protocol
committed information rate
Protocol Independent Multicast dense-mode routing protocol
43. With EIGRP - a purposefully slowly changing measurement of round-trip time between neighbors - from which the EIGRP RTO is calculated.
protocol data unit
Smoothed Round-Trip Time
subnet zero
Maxage timer (STP)
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.
Layer 2 payload compression
fully adjacent (OSPF)
DTE
Inverse ARP
45. Network Address Translation.
WEP
hardware queue
Multicast Open Shortest Path First
NAT
46. The notation in a Cisco IOS IP routing table that identifies the route used by that router as the default route.
Bipolar 8 Zero Substitution
gateway of last resort
Get (SNMP)
modified tail drop
47. An alternative software loaded into a Cisco router - used for low-level debugging and for password recovery.
Time Interval (Tc)
multicast scoping
ROMMON
hello interval
48. Instead of advertising all routes out a particular interface - the routing protocol omits the routes whose outgoing interface field matches the interface out which the update would be sent.
E1
maximum threshold
Multiple Spanning Trees
split horizon
49. 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
ASBR
Protocol Independent Multicast sparse-mode routing protocol
224.0.0.6
graceful restart (OSPF)
50. The one VLAN on an 802.1Q trunk for which the endpoints do not add the 4-byte 802.1Q tag when transmitting frames in that VLAN.
native VLAN
Slow Start Threshold
LAPF
DSCP-to-CoS map