CCIE Exam Practice with complete
solution 2024/2025
What does the EIGRP K5 value modify? - MTU
What is an OTV edge device? - Connects a site to the overlay network
What is the purpose of the command ppp microcode? - Enables hardware PPP
framing on an async interface.
What does the EIGRP K3 value modify? - Delay
What is a pseudowire ID FEC? - Always set to 128.
What information is carried in the community attribute when OSPF is used
between PE and CE? - Carries Domain ID, Route Type, Router ID, and MED.
What is the 802.1x multicast MAC address? - 0180.C200.0003
What return code will a successful MPLS ping show? - Successful (3 or !)
What is the BGP Open Confirm state? - Just waiting for keepalives.
What prefix and mask are used in NAT-PT? - A /96 mask is used. 2000:ABC::/96
What are the functions that are performed by IKE phase 1? - It authenticates the
identities of Ipsec peers, protects the IKE exchange by negotiating a matching
IKE SA policy, it protects the identities of Ipsec peers.
What does the EIGRP K6 value modify? - Extended Metrics
,What are the four reserved VLANs? - fddi-default, token-ring-default, fddinet-
default, trnet-default
What MAC address does HSRPv3 use? - 000.73A0.0xxx
What is an OTV internal interface? - Connects VLANs to be extended
What does a Q mean in a ping output? - Destination too busy
What factors does PfR use to calculate the best exit path? - Delay, Loss,
Reachability
What is ppp multilink multiclass? - "Allows packets to be classed and their
fragments to be given priority over other fragments by using up to four classes.
Must be negotiated between the two peers at the beginning. Each member link
must be configured with the command ""ppp multilink multiclass"" and the
bundle must be configured to negotiate and accept a specific number of classes.
Timeouts can also be sent for delays or missed fragments."
What information is contained in the metadata in an embedded packet capture? -
Timestamp, packet direction, switch path, encapsulation type
How many bits are used by IS-IS metrics in wide mode? - 24 bits for interface
metric, 32 bits for total metric
With what information does EIGRP tag routes from external sources? - Router ID
of the EIGRP router doing the redistributing, AS number where the destination
resides, a configurable administrative tag, Protocol ID of the source external
routing protocol, Metric from the external routing protocol, Bit flags for default
routing.
What is an OTV overlay interface? - Encapsulates layer 2 frames within an IP
header
What does a P mean in the output of show ip mroute? - The route has been
pruned.
What is activation character #27 - Escape
What is the default MTU for IPv6? - 1,280 bytes
,What TLVs are supported by LLDP-MED? - LLDP-MED capabilities, Network
Policy, Power Management, Inventory Management, Location, Duplex,
What is an OTV authoritative edge device? - Elected by the OTV to provide loop-
free multihoming
What are the parameters of the distance bgp command? - external-distance,
internal-distance, local-distance
What MAC address does HSRPv2 use? - 000.0C9F.Fxxx
Which tunneling techniques determine the IPv4 destination address on a per-
packet basis? - 6to4 and ISATAP tunneling.
What would be the effect of the command mls qos queue-set output <1/2> buffers
15 45 20 20? - Divides buffer as illustrated between the four queues.
What does a return code of ! mean in a MPLS ping or traceroute output? - Proper
egress for the FEC (Success)
What TLVs are supported by LLDP? - Port-Description, System Name, System
Description, System Capabilities, Management Address
What is activation character #9 - Tab
What is activation character #13 - Return
What does a ? mean in a ping output? - Unknown packet type
What prefix is used for IPv6 SSM address? - FF3x::/32
Does RIP stop sending multicast packets when the neighbor command is
configured? - No. It will send both.
What causes the STP Root-Inconsistent State? - RootGuard protected port tried
to become a Root port.
What multicast MAC address is used by non-native VLAN STP BPDUs? -
0100.0CCC.CCCD
, Which EEM event detector is triggered by hardware installation or removal? - OIR
Event Detector
What is an OTV join interface? - Provides an uplink to the overlay network
What can PfR passive monitoring mode measure for TCP flows? - delay, packet
loss, throughput, and reachability
What are the OSPF LFA tie-breakers? - In order: SRLG, Primary Path, Interface
Disjoint, Lowest-Metric, Linecard-disjoint, Node Protecting, Broadcast Interface
Disjoint, Load Sharing.
Which information are EIGRP external routes tagged with? - The router ID of the
router that redistributed the route, The protocol ID of the external protocol, The
metric from the external protocol
What does the EIGRP K2 value modify? - Load
What does a & mean in a ping output? - Packet lifetime exceeded
With whom is the Community attribute shared, and how do the different keywords
affect how it is shared? - The Community attribute is shared with the configured
peer only. BGP routers are not required to support or pass on routes with this
attribute. The no-export keyword says not to advertise to eBGP peers. The no-
advertise keyword says not to advertise to other iBGP peers. The no-advertise-
subconfed keyword prevents advertising within a sub-AS.
What is the destination MAC of a BPDU? - 01:80:C2:00:00:00
What is an OTV site VLAN? - Receives local OTV hello messages
How many address families can a single OSPFv3 instance support? - Only one,
but multiple instances can occur over the same link.
What does the EIGRP K1 value modify? - Bandwidth
What is the default point of insertion for BGP cost community? - After the IGP
metric comparison
What is activation character #8 - Backspace
solution 2024/2025
What does the EIGRP K5 value modify? - MTU
What is an OTV edge device? - Connects a site to the overlay network
What is the purpose of the command ppp microcode? - Enables hardware PPP
framing on an async interface.
What does the EIGRP K3 value modify? - Delay
What is a pseudowire ID FEC? - Always set to 128.
What information is carried in the community attribute when OSPF is used
between PE and CE? - Carries Domain ID, Route Type, Router ID, and MED.
What is the 802.1x multicast MAC address? - 0180.C200.0003
What return code will a successful MPLS ping show? - Successful (3 or !)
What is the BGP Open Confirm state? - Just waiting for keepalives.
What prefix and mask are used in NAT-PT? - A /96 mask is used. 2000:ABC::/96
What are the functions that are performed by IKE phase 1? - It authenticates the
identities of Ipsec peers, protects the IKE exchange by negotiating a matching
IKE SA policy, it protects the identities of Ipsec peers.
What does the EIGRP K6 value modify? - Extended Metrics
,What are the four reserved VLANs? - fddi-default, token-ring-default, fddinet-
default, trnet-default
What MAC address does HSRPv3 use? - 000.73A0.0xxx
What is an OTV internal interface? - Connects VLANs to be extended
What does a Q mean in a ping output? - Destination too busy
What factors does PfR use to calculate the best exit path? - Delay, Loss,
Reachability
What is ppp multilink multiclass? - "Allows packets to be classed and their
fragments to be given priority over other fragments by using up to four classes.
Must be negotiated between the two peers at the beginning. Each member link
must be configured with the command ""ppp multilink multiclass"" and the
bundle must be configured to negotiate and accept a specific number of classes.
Timeouts can also be sent for delays or missed fragments."
What information is contained in the metadata in an embedded packet capture? -
Timestamp, packet direction, switch path, encapsulation type
How many bits are used by IS-IS metrics in wide mode? - 24 bits for interface
metric, 32 bits for total metric
With what information does EIGRP tag routes from external sources? - Router ID
of the EIGRP router doing the redistributing, AS number where the destination
resides, a configurable administrative tag, Protocol ID of the source external
routing protocol, Metric from the external routing protocol, Bit flags for default
routing.
What is an OTV overlay interface? - Encapsulates layer 2 frames within an IP
header
What does a P mean in the output of show ip mroute? - The route has been
pruned.
What is activation character #27 - Escape
What is the default MTU for IPv6? - 1,280 bytes
,What TLVs are supported by LLDP-MED? - LLDP-MED capabilities, Network
Policy, Power Management, Inventory Management, Location, Duplex,
What is an OTV authoritative edge device? - Elected by the OTV to provide loop-
free multihoming
What are the parameters of the distance bgp command? - external-distance,
internal-distance, local-distance
What MAC address does HSRPv2 use? - 000.0C9F.Fxxx
Which tunneling techniques determine the IPv4 destination address on a per-
packet basis? - 6to4 and ISATAP tunneling.
What would be the effect of the command mls qos queue-set output <1/2> buffers
15 45 20 20? - Divides buffer as illustrated between the four queues.
What does a return code of ! mean in a MPLS ping or traceroute output? - Proper
egress for the FEC (Success)
What TLVs are supported by LLDP? - Port-Description, System Name, System
Description, System Capabilities, Management Address
What is activation character #9 - Tab
What is activation character #13 - Return
What does a ? mean in a ping output? - Unknown packet type
What prefix is used for IPv6 SSM address? - FF3x::/32
Does RIP stop sending multicast packets when the neighbor command is
configured? - No. It will send both.
What causes the STP Root-Inconsistent State? - RootGuard protected port tried
to become a Root port.
What multicast MAC address is used by non-native VLAN STP BPDUs? -
0100.0CCC.CCCD
, Which EEM event detector is triggered by hardware installation or removal? - OIR
Event Detector
What is an OTV join interface? - Provides an uplink to the overlay network
What can PfR passive monitoring mode measure for TCP flows? - delay, packet
loss, throughput, and reachability
What are the OSPF LFA tie-breakers? - In order: SRLG, Primary Path, Interface
Disjoint, Lowest-Metric, Linecard-disjoint, Node Protecting, Broadcast Interface
Disjoint, Load Sharing.
Which information are EIGRP external routes tagged with? - The router ID of the
router that redistributed the route, The protocol ID of the external protocol, The
metric from the external protocol
What does the EIGRP K2 value modify? - Load
What does a & mean in a ping output? - Packet lifetime exceeded
With whom is the Community attribute shared, and how do the different keywords
affect how it is shared? - The Community attribute is shared with the configured
peer only. BGP routers are not required to support or pass on routes with this
attribute. The no-export keyword says not to advertise to eBGP peers. The no-
advertise keyword says not to advertise to other iBGP peers. The no-advertise-
subconfed keyword prevents advertising within a sub-AS.
What is the destination MAC of a BPDU? - 01:80:C2:00:00:00
What is an OTV site VLAN? - Receives local OTV hello messages
How many address families can a single OSPFv3 instance support? - Only one,
but multiple instances can occur over the same link.
What does the EIGRP K1 value modify? - Bandwidth
What is the default point of insertion for BGP cost community? - After the IGP
metric comparison
What is activation character #8 - Backspace
