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Questions # 1:

Which of the following statements about the BGP Advertise External feature is FALSE?

Options:

A.

It modifies the BGPadvertisement logic.

B.

It improves convergence times and allows for better load sharing.

C.

It allows a router to advertise multiple external paths for a single prefix.

D.

It supports both IPv4 and IPv6.

Expert Solution
Questions # 2:

From what range are 16-bit private AS numbers selected?

Options:

A.

64496 – 64511

B.

1 – 56319

C.

64512-65534

D.

64513-65535

E.

There are no defined private AS numbers; there are only private IP addresses.

Expert Solution
Questions # 3:

Click the exhibit.

Question # 3

Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what isthe most likely relationship between ISP 1 and the other ISPs?

Options:

A.

ISP 1 has a peering relationship with ISP 2 and ISP 4.

B.

ISP 1 has a peering relationship with ISP 2 and a transit relationship with ISP 3.

C.

ISP 1 has a peering relationship with ISP 2and ISP 3.

D.

ISP 1 has a transit relationship with ISP 2 and ISP 4.

E.

ISP 1 has a transit relationship with ISP 2 and a peering relationship with ISP 3.

Expert Solution
Questions # 4:

Which of the following parameters does NOT have to match for an iBGP session to be successfully established?

Options:

A.

BGP version number.

B.

The local AS number.

C.

The Hold Time.

D.

Authentication.

Expert Solution
Questions # 5:

Click the exhibit.

Question # 5

AS 65550 owns CIDR block 10.64.0.0/12. Router R6 advertises the aggregate 10.64.0.0/12 toAS 65541 with "as-set" enabled. Which of the following is TRUE regarding the aggregate route received by router R7?

Options:

A.

The AS Path is set to 65540, and the Atomic Aggregate flag is set.

B.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is set.

C.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is not set.

D.

The AS Path is set to 65550, and the Atomic Aggregate flag is not set.

Expert Solution
Questions # 6:

Which of the following behaviors regarding the modification of BGP attributes within a confederation is TRUE?

Options:

A.

Next Hop is modified when crossing member AS boundaries within a confederation.

B.

Origin Code is modified when crossing member AS boundaries within a confederation.

C.

AS Path is modified when crossing member AS boundaries within aconfederation.

D.

None of the well known mandatory attributes is modified within a confederation.

Expert Solution
Questions # 7:

What kind of attribute is the aggregator?

Options:

A.

Well-known mandatory

B.

Well-known discretionary

C.

Optional transitive

D.

Optionalnon-transitive

Expert Solution
Questions # 8:

Which of the following AS Paths will match the regular expression "65100."?

Options:

A.

"65100"

B.

"65100 65200''

C.

"65200 65100"

D.

"65100 65250 65200"

Expert Solution
Questions # 9:

Which of the following regarding the withdrawal of routes from one BGP speaker to another is

TRUE?

Options:

A.

An update message is used. Only a single prefix can be withdrawn at a time.

B.

An update message is used. Multiple prefixes can be withdrawn at a time.

C.

A withdraw message is used. Only a single prefix can be withdrawn at a time.

D.

A withdraw message is used. Multiple prefixes can be withdrawn at a time.

Expert Solution
Questions # 10:

Which of the following organizations would an ISP based in Europe approach for an IP prefix assignment?

Options:

A.

ARIN

B.

ICANN

C.

RIPE NCC

D.

LACNIC

E.

APNIC

Expert Solution
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