WorksheetsChapter 6 Multiarea OSPF
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
Which OSPF is useful in smaller network?
a)
Single-area
b)
Multiple-area
2.
If an area becomes too big, large routing table must be addressed.
a)
True
b)
False
3.
If an area becomes too big, Large link-state database must be addressed.
a)
False
b)
True
4.
If an area becomes too big, Frequent OSPF algorithm calculations must be addressed.
a)
False
b)
True
5.
_____________ requires a hierarchical network design and the mainarea is called the backbone area, or area 0, and all other areas must connect to the backbone area.
a)
Multiarea OSPF
b)
Singlearea OSPF
6.
Area whose primary function is the fast and efficient movement of IP packets.
a)
Backbone (transit) area
b)
two-layer area
7.
Interconnects with other OSPF area types.
a)
Backbone (transit) area
b)
Regular (nonbackbone) area
8.
Called OSPF area 0, to which all other areas directly connect.
a)
Regular (nonbackbone) area
b)
Backbone (transit) area
9.
Connects users and resources.
a)
Backbone (transit) area
b)
Connects users and resources.
10.
A regular area does not allow traffic from another area to useits links to reach other areas.
a)
Regular (nonbackbone) area
b)
Backbone (transit) area
11.
Multiarea OSPF is the better choice for larger networks than single-area.
a)
true
b)
false
12.
Multiarea OSPF solves the issues of large routing table, large LSDB, and _______________ algorithm calculations.
a)
frequent SPF
b)
ospf
13.
________________ is called the backbone area, or area 0.
a)
Main area
b)
Optional area
14.
Multiarea OSPF is for ___________ the database is kept within an area.
a)
recalculating
b)
multiplying
15.
Which one of these routers is an OSPF router?
a)
Backbone router
b)
Spinal router
16.
A router simply becomes an ____________ when it has two network statements in different areas.
a)
ABR
b)
ACR
17.
_____________________ are the building blocks of OSPF.
a)
Link-state advertisements
b)
ADSL
18.
_______________ are referred to as the router link entries.
a)
Type 1 LSAs
b)
Type 2 SLAs
19.
______________ are referred to as the network link entries and areflooded by a DR.
a)
Type 2 LSAs
b)
Type 3 LSAs
20.
_______________ are referred to as the summary link entries and arecreated and propagated by ABRs.
a)
Type 4 LSAs
b)
Type 3 LSAs
21.
A type 4 summary LSA is ______________ by an ABR only when anASBR exists within an area.
a)
generated
b)
describe
22.
______________ describe routes to networks outside theOSPF autonomous system, originated by the ASBR and are flooded to the entire autonomous system.
a)
Type 5 external LSAs
b)
Type 6 external LSAs
23.
SPF tree is used to _______________ the best paths.
a)
determine
b)
make
24.
OSPF routes in an IPv4 routing table are identified using thefollowing descriptors: ____________________.
a)
O, O IA, O E1, or O E2.
b)
B, F, C, R, ROTC, or O E2.
25.
Multiarea OSPF does not perform ______________ , but can be manually configuredusing the summary-address address mask router configuration mode command
a)
autosummarization
b)
summarization
26.
Commands specific to multiarea information include "show ip protocols."
a)
True
b)
False
27.
Commands specific to multiarea information include "show ip ospf interface brief".
a)
False
b)
True
28.
Commands specific to multiarea information include "show ip route ospf".
a)
True
b)
False
29.
Commands specific to multiarea information include
a)
show ip ospf database
b)
show ip osp database
30.
For OSPFv3, substitute ip with ________.
a)
ipv4
b)
ipv6
31.
ASBRs summarize _______________.
a)
external routes
b)
internal routes
32.
Occurs on ABRs and applies to routes from within each area
a)
Interarea and External Route Summarization
b)
Internal and External Route Summarization
33.
R1 forwards a ___________ LSA tothe core router C1.
a)
summary
b)
summary
34.
C1, in turn, forwards the _______________ to R2 and R3.
a)
summary LSA
b)
glossary RSA
35.
R2 and R3 then forward it to the ______________.
a)
irrespective internal routers
b)
respective internal routers
36.
Implementation Plan Steps
Step 1: Gather the network requirements and parameters.
Step 2: Define the OSPF parameters.
Step 3: Re-Configure OSPF.
Step 4: Verify OSPF.
Which step is incorrect?
Step 1: Gather the network requirements and parameters.
Step 2: Define the OSPF parameters.
Step 3: Re-Configure OSPF.
Step 4: Verify OSPF.
Which step is incorrect?
a)
Step 3
b)
Step 2
c)
Step 1
d)
Step 4
37.
All routers calculate the best paths to destinations within their area (intra-area) and add these entries to the ____________.
a)
routing table
b)
Route Calculation
38.
All routers calculate the best paths to the other areas within the ____________ (inter area) or type 3 and type 4 LSAs.
a)
inter-network
b)
exo-network
39.
All routers calculate the best paths to the external autonomous system (type 5) _____________. These are noted with either an O E1 or an O E2 route designator.
a)
locations
b)
destinations
40.
______________ – ExternalLSAs external type 1(E1) or external type 2 (E2) routes
a)
O E1 or OE 2
b)
O IA
100 %
