Expert Network Engineering Interview Training 1

Expert Network Engineering Training 1

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Question 1
What are the Opaque LSAs? Why are they used?
A
LSA Type 8 - Used for OSPFv2
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 10 - Used to extend OSPF functionality and MPLS-TE
Question 2
What are the Label Distribution Protocols?
A
PIM-SM
B
RSVP-TE
C
LDP
D
IGMP
Question 3
What are the States of OSPF ?
A
Init
B
Two-way
C
Extart
D
Start
E
Loading
F
Exchange
G
Syn
H
Down
I
Loading
Question 4
What are the First 6 Steps of BGP Path Selection Algorithm?
A
1)Origin 2)Local Preference 3)AS Path 4)Self-Originated 5)Weight 6)MED
B
1)Weight 2)Local Preference 3)Self-Originated 4)AS Path 5) Origin 6)MED
C
1)Self-Originated 2)Origin 3)Weight 4)AS Path 5) Local Preference 6)MED
D
1)MED 2)Self-Originated 3)Local Preference 4)AS Path 5) Origin 6)Weight
Question 5
Why do We use Route Reflector in BGP network?
A
It is used to provide eBGP neighbourship establishment.
B
It is used to provide redundancy in BGP networks.
C
It is used to eliminate the full mesh requirement for building iBGP networks.
D
It is used to enhance BGP network.
Question 6
Which Types of Routers are There in an OSPF Network?
A
P Router
B
Internal Router
C
PE Router
D
Backbone Router
E
ASBR (Autonomous System Boundary Router)
F
ABR (Area Border Router)
Question 7
Why is BFD Used?
A
A mechanims used to provide redundancy with routing protocols.
B
A mechanims used to provide network management instead of the protocol snmp.
C
A mechanims used to provide rapid link failure detection instead of routing protocol hellos.
D
A mechanims used to provide quality of service in the network.
Question 8
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
Anycast
C
None of them
D
Multicast
Question 9
Which Address Types do we use for MP-BGP? How Many Bits is This Address?
A
VPN 64 bits address
B
VPNv4 32 bits address
C
VPNv4 32 bits address
D
VPN 128 bits address
Question 10
What are the Router Types Used in MPLS Networks?
A
SR (Swap Router)
B
P (Provider Router)
C
PR (Pop Router)
D
PE (Provider Edge Router)
Question 11
What are the Routing Protocols Used with IPv6?
A
OSPFv2
B
EIGRP for IPv6
C
Integrated ISIS for IPv6
D
MP-BGPv4
E
OSPFv3
F
RIP for IPv6
Question 12
What are the OSPF Packet Types?
A
Hello (Neighbour identification, keepalive)
B
LSU (Updates with multiple LSAs)
C
DBD (Summary of LSDB)
D
TCN (Topology Change Notification)
E
LSR (LSU request)
F
LSAck (Acknowledgement)
G
LSDB (Link State Database)
Question 13
What are the BGP Packets and Their Main Duty?
A
QUALIFY : Differentiates differetn packet types
B
UPDATE : Announces new routes or withdrawing previously announced routes.
C
OPEN : Establishes a peering session.
D
SYN : Provide Synronization of OSPF Network
E
KEEPALIVE : Handshake in regular intervals.
Question 14
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 distinguisher makes a unique VPNv4 address across the MPLS network.
C
The route target defines which prefixes get imported and exported on the P routers.
D
The route target defines which prefixes get imported and exported on the PE routers.
Question 15
One route is Coming From a EBGP Peer. Is This Route Shared with IBGP peers?
A
Yes
B
No
Question 16
Which Ones are some of the Address Types of IPv6?
A
IPv6 Associated Multicast Addresses
B
Global Unicast IPv6 Addresses
C
Unique-Local IPv6 Addresses
D
Link-Local IPv6 Addresses
E
All of them
Question 17
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
Source Router
C
LAN Switch
D
Broadcast Router
Question 18
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
network
B
next-hop-self
C
neighbor
D
peer
Question 19
What is DR? And What is it Used For?
A
A Normal Router in OSPF Network that provide OSPF Routing Facilities
B
A Backup Router in OSPF Network that provide connection in case of an emergency
C
A Central Router in OSPF Network that provide OSPF Routing Exchange between All OSPF Routers
D
A Security Router in OSPF Network that provide OSPF Network Redundancy
Question 20
How Many NAT Types are There? What are Their Roles?
A
Normal NAT (one-to-many translation of ports or addresses)
B
Static NAT (one-to-one translation of ports or addresses)
C
PAT (NAT overload) (many-to-many translation, traffic with unique port numbers used with single public address)
D
Dynamic NAT (many-to-many translation, used with public address pool)
E
NNAT (many-to-many translation, used with unique port numbers)
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