Free Practice Questions for the Nokia SRC Certification 4A0-101 Exam (2026 Updated)
At Marks4sure, we are dedicated to providing IT professionals with the most accurate and reliable preparation materials for the Nokia 4A0-101 exam. To support your certification journey, we have made a selection of our premium 2026 SRC Certification practice questions and answers available completely free. You can take this practice test as many times as you need. Every question includes a detailed, expertly verified explanation to ensure you fully grasp the core security concepts before test day.
Click the exhibit button.
Router R2 advertises the network 192.168.3.0/24 to router R1 via OSPF. A route policy has been constructed to discard the route on router R1; however, it is not working. What is the problem?
Exhibit
Given the two configurations shown, identify the two incorrect statements below: (Choose two)
What must be configured on the Alcatel-Lucent 7750 SR for RIP to advertise locally attached links?
What are the types of networks supported on an Alcatel-Lucent 7750 SR for OSPF? (Choose 2)
Which one of the commands below will create a static route to network 2.3.4.0/24 on the AlcatelLucent 7750 SR router?
Click the exhibit button.
Two neighboring OSPF routers have exchanged the packets shown. What state is the adjacency in?
What command will show the OSPF neighbors, and their status on the Alcatel-Lucent 7750 SR?
From the list below identify two matching criteria supported for IP filters on the Alcatel-Lucent 7750 SR: (Choose two)
Exhibit
The following IS-IS packets have been exchanged between 2 adjacent IS-IS routers. What type of adjacency will be formed?
What modes of authentication are supported for RIPv2 on the Alcatel-Lucent 7750 SR?
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The following command sequence is executed on router R2:
A: R2# configure router ospf router-id 10.10.10.99
A: R2# configure router router-id 10.10.10.66
On router R1, what router ID appears for router R2 directly after these commands are executed?
When a router receives an IP packet, but does not find a match in the routing table for the destination IP address, what actions are performed by the router?
Which of the following statements describe the major features of OSPF? Choose two answers.
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A static route is created on router R1 " using the " static-route 0.0.0.0/0 next-hop 10.3.3.2 " command. What command can be used to test the static route on an Alcatel-Lucent 7750 SR?
Which of the following cannot be used as a matching criterion in route policy statements?
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In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding type 4 LSA generation is true?
If OSPF is used in a multi-area OSPF network, which of the following statements regarding route summarization is true?
In an IP datagram, which of the following fields identifies the receiving application?
Which of the following statements regarding IS-IS Hello packets are true? Choose two answers.
What is the default preference value for a static route in the Alcatel-Lucent 7750 SR?
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Given the topology and the show commands, and assuming that router R2 advertises all of its loopbacks into OSPF, what is the correct router R1 configuration?
The following are statements about fields in the Hello packet that must match in order to form an OSPF adjacency. Which statement is correct?
Click on the exhibit.
If router R2 re-distributes the IS-IS route 192.168.3.0/24 into OSPF, router R3 will receive two routes to 192.168.3.0/24. Assume that all IS-IS routers are L1/L2 capable and are in the same area.
Which of the following is TRUE?
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Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. Assume the OSPF and IS-IS adjacencies are operational.
How many OSPF Type 5 LSAs will router R1 receive from router R2?
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Given the contents of the Router LSA, which of the following best describes the local topology of the router?
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Router R5 is advertising the three loopbacks prefixes shown in OSPFv3. The following command is executed on router R1: R1# configure router ospf3 area 0 area-range FD00:11:11:5000:764.
Which of the following is TRUE regarding the OSPFv3 LSDB on R6?
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All ports in the network are operationally up and have a speed of 1Gbps.
Which of the following is TRUE?
Static routing is to be used in a network between a corporate head office with many connected networks and a branch office with one connection to the head office. Which of the following is the most likely configuration on the head office and branch office routers?
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Router R1 learns the network 192.168.3.0/24 from IS-IS. Given the OSPF configuration shown, why isn ' t the 192.168.3.0/24 route in router R3 ' s route table?
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The numbers beside the links are the metrics for that link.
Given the diagram, what path will traffic follow from router R2 to router R8, and from router R8 to router R2, if IS-IS is the routing protocol?
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Based on the topology shown and the route tables of routers R3 and R4, which of the following is correct?
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A static route has been configured on router R1 to reach the PC at 139.120.121.2. What might be causing the ping to fail?
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The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers.
After IPv6 has been configured, which of the following is TRUE?
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Router R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown.
How many routes will router R4 have in its IPv6 route table?
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OSPF router R2 has both point-to-point and broadcast interfaces and it is not a DR for any interfaces. Router R2 detects the link failure between itself and router R1.
Which of the following is correct?
How does an IS-IS router acknowledge the receipt of an IS-IS LSP on a point-to-point link?
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Assuming point-to-point links, which of the following is TRUE?
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Router R2 uses OSPF to advertise the network 192.168.3.0/24 to router R1. A route policy has been configured to reject the route on router R1.
Why doesn ' t the route policy work?
Which of the following best describes the forwarding of a IPv6 packet that has a destination anycast address?
Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?
Which component of the Alcatel-Lucent 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?
Click on the exhibit.
Before the link failure, all routers have operational OSPF adjacencies between them and there is a BFD session between routers R1 and R3.
After the link failure, which of the following affects the IGP convergence time?
Click on the exhibit.
An OSPFv3 router is attached to a non-OSPF domain that includes networks 2001:DB8:8::/64.2001 .DB8:9::/64 and 2001 :DB8:A::/64. Other routers in the OSPF domain see the prefix 2001, DB8:8::/64, but not the other two prefixes.
What could cause this?
Click on the exhibit.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 5 LSA generation is TRUE?
An Alcatel-Lucent 7750 SR has a port with the MAC address of 00;03:FA:AC:77: AF. The port is bound to an interface. If IPv6 is then enabled on that interface .what will the link-local address be?
The solicited node address for the destination node address of 2001:DB8::30A:216 4DFF:FE14:6CAE is:
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Assuming that the router ID of the router shown is 10.10.10.4, which of the following statements regarding the CLI output is true?
In IS-IS database synchronization, each router compares each LSP described in the received CSNPs with the LSPs in its own database. Which of the following actions is taken if the database contains a newer copy of the LSP?
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In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 4 LSA generation is true?
Which of the statements below best describes the operation of the IPv6 anycast address?
Which of the following describes the method used to resolve an IPv6 address to a MAC address?
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A static route is created on router R1 using the command " static-route 0.0.0.0/0 next-hop 10.3.3.2 " . What command can be used to test the static route on an Alcatel-Lucent 7750 SR?
Click the exhibit button.
If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 will receive two routes to 192.168.3.0/24. What will be the preference of these two routes? Assume that all IS-IS routers are L1/L2 capable and are in the same area. Choose two answers.
Which of the following statements regarding link state protocols are true? (Choose two)
Which of the following is optional when configuring IS-IS on the Alcatel-Lucent 7750 SR?
Refer to the exhibit below.
R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown. How many routes will R4 have in its IPv6 route table?
Static routing is to be used in a network between a corporate head office with many connected networks, and a branch office with one connection to the head office. Which of the following best describes the likely configuration?
Which part of the NSAP address is used to indicate to the end system that a packet is to be processed by the router itself?
Click the exhibit button.
Router 2 advertises the network 192.168.3.0/24 to router R1 via IS-IS.
How can router R1 ensure that it discards the route?
Which of the following statements regarding OSPF routing updates on a multi-access network segment is true?
What command is used on the Alcatel-Lucent 7750 SR to define the default action to be taken if a packet does not match any entry in an IP filter?
Select the answer below that correctly lists the 5 different OSPF packet types.
NSSA LSA packets are what type within an NSSA area, and are converted to what other type at the ABR?
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