Expert Network Engineering Interview Training 1

Expert Network Engineering Training 1

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Question 1
Why do We use Route Reflector in BGP network?
A
It is used to eliminate the full mesh requirement for building iBGP networks.
B
It is used to provide redundancy in BGP networks.
C
It is used to enhance BGP network.
D
It is used to provide eBGP neighbourship establishment.
Question 2
There is no Broadcast in IPv6. In IPv4, broadcast cause to send the packets to all nodes even if they do not care. This cause an unecessary trafffic. In IPv6, instead of broadcast, ...... is used.
A
Unicast
B
None of them
C
Anycast
D
Multicast
Question 3
What are the Routing Protocols Used with IPv6?
A
RIP for IPv6
B
Integrated ISIS for IPv6
C
MP-BGPv4
D
OSPFv2
E
OSPFv3
F
EIGRP for IPv6
Question 4
One route is Coming From a EBGP Peer. Is This Route Shared with IBGP peers?
A
No
B
Yes
Question 5
Which Address Types do we use for MP-BGP? How Many Bits is This Address?
A
VPNv4 32 bits address
B
VPNv4 32 bits address
C
VPN 64 bits address
D
VPN 128 bits address
Question 6
Next Hop remains unchanged when route is advertised to IBGP peer; however, it is changed when it is advertised to EBGP peer by default. .... Command provides to change next hop, while advertising, as a local route.
A
peer
B
neighbor
C
next-hop-self
D
network
Question 7
An ..... acts as the meeting place for sources and receivers of multicast data in a PIM-SM network. In this network, sources must send their traffic to the RP. This traffic is then forwarded to receivers down a shared distribution tree.
A
Rendezvous Point
B
Broadcast Router
C
Source Router
D
LAN Switch
Question 8
Why is BFD Used?
A
A mechanims used to provide rapid link failure detection instead of routing protocol hellos.
B
A mechanims used to provide network management instead of the protocol snmp.
C
A mechanims used to provide redundancy with routing protocols.
D
A mechanims used to provide quality of service in the network.
Question 9
What are the First 6 Steps of BGP Path Selection Algorithm?
A
1)MED 2)Self-Originated 3)Local Preference 4)AS Path 5) Origin 6)Weight
B
1)Origin 2)Local Preference 3)AS Path 4)Self-Originated 5)Weight 6)MED
C
1)Self-Originated 2)Origin 3)Weight 4)AS Path 5) Local Preference 6)MED
D
1)Weight 2)Local Preference 3)Self-Originated 4)AS Path 5) Origin 6)MED
Question 10
Which Ones are some of the Address Types of IPv6?
A
Global Unicast IPv6 Addresses
B
IPv6 Associated Multicast Addresses
C
Unique-Local IPv6 Addresses
D
Link-Local IPv6 Addresses
E
All of them
Question 11
What is DR? And What is it Used For?
A
A Backup Router in OSPF Network that provide connection in case of an emergency
B
A Central Router in OSPF Network that provide OSPF Routing Exchange between All OSPF Routers
C
A Security Router in OSPF Network that provide OSPF Network Redundancy
D
A Normal Router in OSPF Network that provide OSPF Routing Facilities
Question 12
Which Ones are True for  Route Distinguisher and Route Target?
A
The route distinguisher makes a unique IP address across the MPLS network.
B
The route target defines which prefixes get imported and exported on the P routers.
C
The route target defines which prefixes get imported and exported on the PE routers.
D
The route distinguisher makes a unique VPNv4 address across the MPLS network.
Question 13
What are the BGP Packets and Their Main Duty?
A
KEEPALIVE : Handshake in regular intervals.
B
SYN : Provide Synronization of OSPF Network
C
QUALIFY : Differentiates differetn packet types
D
OPEN : Establishes a peering session.
E
UPDATE : Announces new routes or withdrawing previously announced routes.
Question 14
How Many NAT Types are There? What are Their Roles?
A
PAT (NAT overload) (many-to-many translation, traffic with unique port numbers used with single public address)
B
Static NAT (one-to-one translation of ports or addresses)
C
Normal NAT (one-to-many translation of ports or addresses)
D
Dynamic NAT (many-to-many translation, used with public address pool)
E
NNAT (many-to-many translation, used with unique port numbers)
Question 15
What are the Label Distribution Protocols?
A
RSVP-TE
B
PIM-SM
C
IGMP
D
LDP
Question 16
What are the States of OSPF ?
A
Extart
B
Init
C
Syn
D
Two-way
E
Exchange
F
Start
G
Loading
H
Loading
I
Down
Question 17
Which Types of Routers are There in an OSPF Network?
A
PE Router
B
Internal Router
C
ABR (Area Border Router)
D
P Router
E
Backbone Router
F
ASBR (Autonomous System Boundary Router)
Question 18
What are the OSPF Packet Types?
A
LSAck (Acknowledgement)
B
LSDB (Link State Database)
C
LSR (LSU request)
D
DBD (Summary of LSDB)
E
LSU (Updates with multiple LSAs)
F
Hello (Neighbour identification, keepalive)
G
TCN (Topology Change Notification)
Question 19
What are the Opaque LSAs? Why are they used?
A
LSA Type 10 - Used to extend OSPF functionality and MPLS-TE
B
LSA Type 11 - Used to extend OSPF functionality but no advertised to stub areas.
C
LSA Type 9 - Used for OSPFv3
D
LSA Type 7 - Used to extend OSPF functionality and MP-BGP
E
LSA Type 8 - Used for OSPFv2
Question 20
What are the Router Types Used in MPLS Networks?
A
PE (Provider Edge Router)
B
SR (Swap Router)
C
PR (Pop Router)
D
P (Provider Router)
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