Alcatel-Lucent 4A0-100 Free Practice Questions

NEW QUESTION 1
You are working from a particular Command Line Interface (CLI) context, and want to see the commands available from your current context. What command can you issue to view this information?

• A. view tree
• B. tree
• C. info detail
• D. info

Answer: B

NEW QUESTION 2
Which bit pattern identifies the network address in the subnet mask?

• A. A string of consecutive 1'
• B. A string of consecutive0'
• C. A string of alternating 10'
• D. The network address is determined by masking the source address with a port's ifIndex binary representatio

Answer: A

NEW QUESTION 3
Which of the following statements is FALSE when describing a Virtual Private LAN Service?

• A. A VPLS emulates a virtual switch or bridg
• B. The VPLS performs MAC learning on MAC addresses seen from SAPs and SDP
• C. When a VPLS receives a frame with an unknown MAC destination, the frame will be droppe
• D. MAC addresses are maintained in a MAC address forwarding database (FDB).

Answer: C

NEW QUESTION 4
Which of the following are accurate statements about the PE device in a service providers MPLS network? (Select three)

• A. A PE router only connects to CE device
• B. A PE router only connects to P router
• C. A PE router connects to at least one P route
• D. A PE router connects to at least one CE devic
• E. PE routers support many different interface types connecting to CE device
• F. PE routers only support Ethernet interfaces connecting to the C

Answer: CDE

NEW QUESTION 5
Which of the following SAP types can be associated to a VPWS? (Choose 3)

• A. Ethernet
• B. ATM
• C. Token Ring
• D. Frame Relay

Answer: ABD

NEW QUESTION 6
Which technologies can be used with Ethernet switches to achieve redundancy? (Choose two)

• A. LAG
• B. OSPF
• C. RIP
• D. STP

Answer: AD

NEW QUESTION 7
Which statement best describes a VPRN service?

• A. From the customers perspective it looks as if all sites are connected by the same set of dark fiber
• B. From the customers perspective it looks as if all sites are connected to a private switched network administered by the service provide
• C. From the customers perspective it looks as if all sites are connected to a private routed network administered by the service provide
• D. From the customers perspective it looks as if all sites have public internet access administered by the service provide

Answer: C

NEW QUESTION 8
What operation is performed by an LSR when it receives an MPLS labeled packet?

• A. The LSR refers to its routing table and forwards the packet to the next LSR or LER without altering the MPLS labe
• B. The LSR refers to its MPLS label table, swaps the label and forwards the packet to the next LSR or LE
• C. The LSR refers to its MPLS label table forwards the packet to the next LSR or LER without altering the MPLS labe
• D. The LSR refers to its MPLS label table, pops the label and forwards the packet to the next IP route

Answer: B

NEW QUESTION 9
Based on the network diagram (click the Exhibit Button).

Router 1 installs network D in its routing table following a dynamic routing update from Router 2. Which of the following describes the information that will be installed in the routing table?

• A. 172.16.9.0/24 next-hop 10.10.10.1
• B. 172.16.9.0/24 next-hop 10.10.10.2
• C. 172.16.9.0.24 next-hop 10.10 10 3
• D. 0.0.0.0/32 next-hop 172.16.9.1

Answer: C

NEW QUESTION 10
Which of the following is a characteristic of a static route?

• A. Responds in real time to network failure
• B. Can only be used for routing within an autonomous syste
• C. Uses a hop-count metric to determine the best route to a networ
• D. Explicitly defines the next-hop based on operator inpu

Answer: D

NEW QUESTION 11
What happens in a TCP session if a segment is not acknowledged within a certain time period?

• A. The missing segment is retransmitte
• B. The TCP session is terminate
• C. The sender sends the next segmen
• D. An ICMP destination unreachable message is sen

Answer: A

NEW QUESTION 12
Which of the following describes a static default route?

• A. An entry included in the default configuration of the router that is used if no dynamic routing protocols or static routes are configure
• B. A wildcard entry used when the destination network is not specifically defined in the routing tabl
• C. An entry selected based on the route that has the least cost to the destination (path with the most physical bandwidth)
• D. An entry used by the routing protocol when it is unable to calculate the best route to the destinatio

Answer: B

NEW QUESTION 13
What is the function of a Routing Table Manager (RTM)?

• A. To find the best path to the destination network and install it in the routing table - based on the metrics of the routing protoco
• B. To provide a CLI interface that allows the operator to configure the dynamic routing protocol on the route
• C. To choose the route with the lowest preference and install it in the routing table - based on the routing protocol preference value
• D. To provide a CLI interface that allows the network operator to install static routes in the routing tabl

Answer: C

NEW QUESTION 14
Which compact flash on a Control/Switch processor of an Alcatel-Lucent 7750 router stores the runtime image and running configuration?

• A. CF 1
• B. CF 2
• C. CF 3
• D. Both A and B

Answer: C

NEW QUESTION 15
The TCP/IP and OSI models of protocol aresimilar in that they both have:

• A. An application and session laye
• B. A network layer that provides a universal and consistent forwarding servic
• C. A transport layer with two protocol
• D. An applications services layer with similar layering and service definition

Answer: C

NEW QUESTION 16
Which of the following describes an IP filter on the Alcatel-Lucent 7750 SR?

• A. An IP filter is used to examine an IP packet and its content
• B. An IP filter is applied to allow or deny IP packets into a networ
• C. Multiple ingress and egress filter policies can be applied to a network interfac
• D. Once an IP filter is applied it cannot be modifie

Answer: B

NEW QUESTION 17
If a 4-port LAG is configured with the option of 'port-threshold 2' and 'action down' what will
happen if the total operational links in the LAG is 2?

• A. If dynamic-cost is enabled it will adjust the cost for routing protocols such as OSP
• B. If dynamic-cost is not enabled it will adjust the cost for routing protocols such as OSPF by dividing the link bandwidth by 2.
• C. The LAG will be changed to an operational state of 'down'.
• D. The LAG will function with only 2 port
• E. There will be no change to the routing metri

Answer: C

NEW QUESTION 18
As described by the CSMA/CD algorithm, what is the first thing to happen when Host A and Host B begin transmitting data at the same time?

• A. Host A and B will generate a jam signa
• B. Listening hosts will request retransmissio
• C. Host A or B will retry the transmissio
• D. A back-off timer is started by Host A or

Answer: A

NEW QUESTION 19
Which three of the following are important considerations when designing subnets? (Choose three.)

• A. Number of subnetworks currently require
• B. Type of physical connectivity used by each segmen
• C. Future network growth requirement
• D. Number of hosts each subnetwork will suppor
• E. Class of the network address to be used for the networ

Answer: ACD