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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. 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.
Lead Content Engine
Class-Based Weighted Fair Queuing
hardware queue
Dead Time/Interval
2. A BGP router that forwards iBGP-learned routes to other iBGP routers.
route reflector server
maximum transmission unit
CWND
committed information rate
3. 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.
passive scanning
Forwarding Equivalence Class
committed information rate
NetFlow aggregator
4. A switch feature in which the switch examines DHCP messages and - for untrusted ports - filters all messages typically sent by servers and inappropriate messages sent by clients. It also builds a DHCP snooping binding table that is used by DAI and IP
stub network (OSPF)
DHCP snooping
modified tail drop
UDLD
5. Protects against problems caused by unidirectional links between two switches. Watches for loss of received Hello BPDUs - in which case it transitions to a loop-inconsistent state instead of transitioning to a forwarding state.
Spanning Tree Protocol
Classic IOS Firewall
MQC
Loop Guard
6. 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
Maximum Segment Size
CDP Control Protocol
LSA
Router Advertisement
7. A 3-tuple consisting of an IP address - port number - and transport layer protocol. TCP connections exist between a pair of sockets.
socket
SNMP manager
SSThresh
Measured Round-Trip Time
8. Switched virtual circuit.
SVC
LSA flooding
UDLD
Digital Signal Level 0
9. A prestandard (at the time of publication) wireless LAN physical layer that offers data rates in the hundreds of megabits per second.
Classic IOS Firewall
802.11n
static length subnet masking
AMI
10. 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.
AIS
authentication - authorization - and accounting
same-layer interaction
Local Management Interface
11. 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.
Congestion Avoidance
TDP
Common Spanning Tree
Management Information Base
12. Dynamic Host Configuration Protocol.
DHCP
Inter-Switch Link
half duplex
IP forwarding
13. Receivers subscribe to an (S -G) channel when they request to join a multicast group. That is - they specify the unicast IP address of their multicast source and the group multicast address. SSM is typically used in very large multicast deployments s
Committed Burst
AS_PATH length
Source-Specific Multicast (SSM)
framing
14. EAP over LAN.
LSR
Reliable Transport Protocol
EAPoL
Password Authentication Protocol
15. Sequence number.
SN
MLP LFI
policy routing
CE
16. A method of Link Fragmentation and Interleaving (LFI) over interfaces that natively use Frame Relay encapsulation. The routers first build MLP-style PPP headers - which are then encapsulated inside a Frame Relay header. The PPP headers are then used
Frame Relay LFI Using Multilink PPP (MLP)
Root Guard
Forwarding Equivalence Class
Password Authentication Protocol
17. A BGP router in an AS that uses route reflectors - but that is not aided by any RR server.
route reflector non-client
MPLS TTL propagation
frequency hopping spread spectrum
IP Control Protocol
18. With PIM on a multiaccess network - the PIM router with the highest IP address on the subnet. It is also the IGMPv1 Querier. The DR is responsible for the following tasks: - Sending PIM register and PIM join and prune messages toward the RP to infor
totally NSSA area
802.1Q-in-Q
Password Authentication Protocol
designated router (PIM)
19. Inside telcos' original TDM hierarchy - the smallest unit of transmission at 64 kbps.
SPF calculation
classful routing
Lead Content Engine
Digital Signal Level 0
20. Backup designated router.
fully adjacent (OSPF)
BDR
MSS
Set (SNMP)
21. An FRTS configuration construct - configured with the map-class frame-relay global configuration command.
aggregate route
Classless IP Addressing
map class
Bc bucket
22. An individual line in an ACL.
TCP header compression
NTP client mode
LACP
Access Control Entry
23. With EIGRP - the route to each destination for which the metric is the lowest of all known routes to that network.
successor route
framing
Measured Round-Trip Time
well-known mandatory
24. A component of the IOS IP SLA feature. An IP SLA responder is a router configured to respond to a particular IP SLA message initiated by another router - allowing the routers to work together to provide performance information including UDP jitter an
BPDU Guard
IP SLA responder
CQ
LMI
25. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.
Multicast Source Discovery Protocol (MSDP)
label switched path
component route
Get (SNMP)
26. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame.
AutoQos
hardware queue
Loss of Frame
variance
27. Used by WRED to calculate the rate at which the average queue depth changes as compared with the current queue depth. The larger the number - the slower the change in the average queue depth.
exponential weighting constant
VLAN filtering
LOCAL_AS
full update
28. Superframe
FRF.9
Dynamic Trunking Protocol
SF
MPLS unicast
29. Link Fragmentation and Interleaving.
Dynamic Host Configuration Protocol
Class-Based Marking
payload compression
LFI
30. An IPv6 address format used for publicly registered IPv6 addresses.
aggregatable global unicast address
tail drop
LSP segment
ARP
31. Sending a message from a single source or multiple sources to selected multiple destinations across a Layer 3 network in one data stream.
variance
weight (BGP)
wireless LAN controller
multicasting
32. The same thing as TCP code bits. See TCP code bits.
TCP flags
CHAP
Border Gateway Protocol
RF channel
33. The encapsulation of EAP messages directly inside LAN frames. This encapsulation is used between the supplicant and the authenticator.
soft reconfiguration
Service Interworking
EAP over LAN
FT
34. Boot Protocol. A standard (RFC 951) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address.
multi-action policing
Common Spanning Tree
BOOTP
broadcast subnet
35. An Internet standard authentication protocol that uses clear-text passwords and a two-way handshake to perform authentication over a PPP link.
Address Resolution Protocol
broadcast address
virtual circuit
Password Authentication Protocol
36. In the PIM-SM design - the central distribution point to which the multicast traffic is first delivered from the source designated router.
virtual circuit
actual queue depth
rendezvous point
Port Aggregation Protocol
37. 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.
QV
minimum threshold
Query (EIGRP)
2Way (OSPF)
38. Low-latency queuing.
Structure of Management Information
AF
label switched path
LLQ
39. The portion of PPP focused on negotiating IP features
MLS
dual-rate - three-color policer
IP Control Protocol
Zone-based IOS firewall
40. Operation - Administration - and Maintenance.
OAM
FHSS
Classic IOS Firewall
edge LSR
41. Ready To Send.
Extended Superframe
DTE
RTS
DE
42. A route that is used for forwarding packets when the packet does not match any more specific routes in the IP routing table.
authentication server
default route
I/G bit
IP routing
43. Exterior Gateway Protocol.
EGP
designated router (PIM)
full update
summary route
44. 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.
violate category
Dijkstra Algorithm
SSM
Next Hop field
45. An MQC configuration style by which one policy map calls a second policy map. For example - a shaping policy map can call an LLQ policy map to implement LLQ for packets shaped by CB Shaping.
trunking
label switched path
Red Alarm
nested policy maps
46. 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.
regular expression
AS_PATH prepending
Forward Explicit Congestion Notification
TCP SYN flood
47. Type of Service byte.
Internet Group Management Protocol
direct sequence spread spectrum
Dijkstra Algorithm
ToS byte
48. 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
CSMA/CD
route reflector server
provider edge
data terminal equipment
49. Neighbor Discovery Protocol.
confederation eBGP peer
ND
QoS pre-classification
service policy
50. A Cisco-proprietary protocol - used by LAN switches to communicate VLAN configuration.
community VLAN
VLAN Trunking Protocol
Cisco Express Forwarding
passive mode FTP
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