Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
99 Cards in this Set
- Front
- Back
What is one reason to use the ip ospf priority command when the OSPF routing protocol is in use?
|
to influence the DR/BDR election process
|
|
What statement describes the reference bandwidth in OSPFv3?
|
It should be changed if links faster than 100 Mb/s exist in the OSPF network.
|
|
Routers receive hello packets that contain the router ID of the neighboring device.
|
Init state
|
|
On Ethernet links, a designated router (DR) and a backup designated router (BDR) is elected.
|
Two-Way state
|
|
Routers exchange DBD packets.
|
Exchange state
|
|
The command _______ is used to display only OSPFv3 learned routes.
|
show ipv6 route ospf
|
|
Which three parameters should match in order for a pair of routers to form an adjacency when running OSPFv2?
|
OSPFv2 type of network, hello timer, subnet mask
|
|
The command __________ is used when configuring an OSPFv2 router to redistribute only a static default route.
|
default-information originate
|
|
Consider the R1(config-if)# ip ospf message-digest-key 1 md5 CISCO-123 command. What is the function of the CISCO-123 portion of the command?
|
It is used as a password.
|
|
Which command will verify that a router running OSPFv3 has received a redistributed default static route from another OSPFv3 router?
|
show ipv6 route
|
|
OSPF routers within an area have the same ______.
|
link-state information
|
|
OSPF routers may have large ______ if routes are not summarized.
|
routing tables
|
|
Which statement describes a characteristic of convergence in an OSPF network?
|
Once converged, a router can communicate with any network within or outside the OSPF autonomous system.
|
|
When showip route command is entered, why are some of the entries marked O IA?
|
They correspond to entries that are learned from other areas.
|
|
A network administrator is configuring OSPFv3 on R1. Which command sequence is used to advertise the network that is attached to Gi0/0?
|
int Gi0/0, ipv6 ospf area
|
|
On which two types of OSPF routers can route summarization be configured?
|
ABR, ASBR
|
|
What are two reasons for creating an OSPF network with multiple areas?
|
to reduce SPF calculations, to reduce use of memory and processor resources
|
|
A type __ LSA identifies the ASBR and provides a route to it.
|
4
|
|
Routers first calculate the best path to destinations ______, then to other areas within the ________, then to destinations ________.
|
within their own area, internetwork, external to the network
|
|
Which type of routing table entry would indicate that an external route was redistributed into the multiarea OSPF process?
|
O E2
|
|
An __ routing table entry indicates a route, from within the same area, that was learned through OSPF updates.
|
O
|
|
An __ route is a route from another OSPF area.
|
O IA
|
|
An __ route is an external route, such as one redistributed from RIP, EIGRP, or a static route, that was redistributed into the OSPF process.
|
O E2 or O E1
|
|
An __ entry is for a static route. A C entry represents a directly connected network.
|
S
|
|
With multiarea OSPF, which OSPF router type has all interfaces in the same area?
|
internal router
|
|
An ______ router has all interfaces in the same area.
|
internal
|
|
T/F: The Area Border Router and the Autonomous System Boundary Router have interfaces in more than one area.
|
True
|
|
____ router is not an OSPF router type.
|
Edge
|
|
A router has six networks that are connected to it with network IDs of 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24, 192.168.4.0/24, and 192.168.5.0/24. After summarization of these six networks, how many LSAs would be sent to advertise the summary route or routes?
|
two
|
|
OSPF routers within the same area will have the same ______ databases.
|
link-state
|
|
Without route summarization, OSPF routers may have large ______.
|
routing tables
|
|
T/F: There is no automatic summarization of routes with OSPF.
|
True
|
|
____ can be implemented in a single area or in a two-layer multiarea hierarchy.
|
OSPF
|
|
______, especially in larger networks, is processor intensive.
|
SPF recalculation
|
|
_______ are able to communicate within or outside the autonomous system.
|
Converged networks
|
|
O IA routes have been learned by the ___ from external LSAs.
|
ABR
|
|
T/F: OSPFv3 specifies networks to be advertised under the router configuration mode.
|
False
|
|
OSPFv3 enables a network to be in OSPFv3 with the command _______ under the interface configuration mode.
|
ipv6 ospf area
|
|
T/F: If a router is not running OSPF, it is still configurable with an OSPF area.
|
False
|
|
OSPF areas have no direct relationship with the _______.
|
Internet
|
|
T/F: Multiple OSPF areas are required to connect to the Internet.
|
False
|
|
OSPF _____ help to decrease the demand for router memory and processing power by limiting OSPF protocol traffic, keeping link-state databases small, and requiring fewer SPF recalculations.
|
areas
|
|
T/F: Multiarea OSPF simplifies the configuration process.
|
False
|
|
OSPF uses ______ to build the LSDB and maintain routing tables.
|
link-state advertisement messages (LSAs)
|
|
The default reference-bandwidth for OSPF is _______.
|
100 Mb/s
|
|
The _______ must be changed to a higher value to accommodate networks with links faster that 100 Mb/s.
|
reference-bandwidth
|
|
The ____ state indicates that the routers in the domain have converged.
|
Full
|
|
T/F: The router IDs must be different for routers that participate in the same routing domain.
|
True
|
|
Routers need to be in the same subnet in order to form an _______.
|
adjacency
|
|
The router with the highest priority is elected as the ________.
|
designated router (DR)
|
|
OSPFv3 is used for ____ routing.
|
IPv6
|
|
The _______ command is used to display the IPv4 routing table.
|
show ip route
|
|
EIGRP uses the ______ command to initiate the static route redistribution.
|
redistribute static
|
|
Once OSPF neighbor adjacencies have formed, use the _______ command to determine which router was elected the DR and which router was elected the BDR.
|
show ip ospf neighbors
|
|
The value 2816 in (2170112/2816) is the "_______," the metric of the neighbor router to reach the destination network.
|
reported distance
|
|
The value 2170112 in (2170112/2816) is the _______, the metric cost to reach the destination network.
|
feasible distance
|
|
In an IP packet header, the field protocol number __ indicates TCP protocol is used in the encapsulated PDU.
|
6
|
|
In an IP packet header, the field protocol number __ indicates UDP protocol is used in the encapsulated PDU.
|
17
|
|
In an IP packet header, the field protocol number __ indicates EIGRP protocol is used in the encapsulated PDU.
|
88
|
|
In an IP packet header, the field protocol number __ indicates OSPF protocol is used in the encapsulated PDU.
|
89
|
|
EIGRP administrative distance for a summary route.
|
5
|
|
EIGRP administrative distance for an internal route.
|
90
|
|
EIGRP administrative distance for an external route.
|
170
|
|
Which two values are included by default in the calculation of an EIGRP metric?
|
bandwidth, delay
|
|
In the command router eigrp 100, what does the value 100 represent?
|
autonomous system number
|
|
EIGRP ______ packets are used to propagate routing information to other routers.
|
update
|
|
EIGRP _____ packets are used to form and maintain neighbor relationships between EIGRP-enabled routers.
|
hello
|
|
EIGRP _____ packets are used when reliable delivery is used and a confirmation needs to be returned.
|
acknowledgment
|
|
EIGRP _____ packets are used in response to a query packet, which searches for a route to a specific destination network.
|
reply
|
|
224.0.0.10 is the reserved IPv4 multicast address that is used by _____.
|
EIGRP
|
|
The bandwidth factor that is used to calculate the composite metric of the EIGRP is defined as the ________ of all outgoing interfaces between the source and destination.
|
slowest bandwidth
|
|
EIGRP for IPv6 will use the ______ that is configured on any enabled interface as the router ID.
|
highest IPv4 address
|
|
EIGRP for IPv6 uses the ______ as the destination address for EIGRP messages.
|
all-EIGRP-routers link-local multicast address
|
|
What two conditions will result in an EIGRP route going into the active state?
|
The successor is down, The network has been recalculated
|
|
Which two protocols are allowed to be routed by EIGRP as a consequence of the PDM feature?
|
IPv4, IPv6
|
|
______ allow EIGRP to route for various Layer 3 protocol packets.
|
Protocol-dependent modules (PDM)
|
|
TCP and UDP are Layer __ protocols.
|
4
|
|
______ is used by EIGRP to guarantee delivery of packets.
|
RTP
|
|
In an EIGRP routing table, code __ indicates that the route was learned from an EIGRP routing update.
|
D
|
|
Code __ indicates that the route is an external EIGRP route, that is, a route outside of the EIGRP routing domain.
|
EX
|
|
When an organization has ______, automatic summarization can cause inconsistent routing.
|
discontiguous networks
|
|
T/F: Automatic summarization prevents convergence of the routing table and increases the size of routing updates.
|
False
|
|
EIGRP authentication uses the ___ algorithm.
|
MD5
|
|
EIGRP authentication uses a ______.
|
pre-shared key
|
|
Using a route to the ______ interface prevents routing loops for any destination networks present in the summary route that do not actually exist.
|
Null0
|
|
This command is used to verify which routing protocol is configured, the AS number, and whether automatic summarization is enabled.
|
show ip protocols
|
|
An IPv6 default route is represented by ____.
|
::/0
|
|
A network administrator would use the ______ as-number percent command when there is a low bandwidth connection.
|
ip bandwidth-percent eigrp
|
|
By default, EIGRP will use only up to __ percent of an interface's bandwidth for EIGRP information.
|
50
|
|
T/F: EIGRP hello intervals should be less than or equal to EIGRP hold timers.
|
True
|
|
When the EIGRP ______ has expired, the neighbor adjacency will go down.
|
hold timer
|
|
T/F: EIGRP hello intervals and hold timers do not have to match for two routers to form an EIGRP adjacency.
|
True
|
|
Which command would a network engineer use to restore the IOS image c1900-universalk9-mz.SPA.152-4.M3.bin to a router?
|
copy tftp: flash0:
|
|
Which Cisco 12.4 IOS image package offers the most feature sets?
|
Advanced Enterprise Services
|
|
Which Cisco IOS 15 technology package would be needed to implement voice over IP?
|
uck9
|
|
A network engineer purchases, installs, and activates a license key on a Cisco 2911 ISR G2 router. What is the next step in the installation process?
|
Reload
|
|
Which Cisco IOS 15.0 technology package contains the IPsec framework components required to support the ISR G2 platforms?
|
Security
|
|
A ___ is a combination of the product ID, the serial number, and the hardware version.
|
UDI
|
|
Which Cisco IOS release followed Release 12.4?
|
15
|