Latest Juniper JN0-280 PDF and Dumps (2024) Free Exam Questions Answers
Pass Your JNCIA-DC JN0-280 Exam on Aug 01, 2024 with 120 Questions
NEW QUESTION # 61
What is the primary purpose of MAC address filtering on a switch?
- A. To limit the rate of incoming packets.
- B. To prevent unauthorized devices from accessing the network.
- C. To control the flow of encrypted data.
- D. To distribute traffic evenly across multiple links.
Answer: B
NEW QUESTION # 62
What is the function of the 'Weight' attribute in BGP, and where is it used in the route selection process?
- A. It is used to balance load among multiple links and is considered after the MED attribute.
- B. It is used to prioritize routes received from different EBGP peers and is considered before the AS_PATH attribute.
- C. It is a Cisco-specific attribute used to prefer paths from one BGP speaker over another, evaluated before the Local Preference.
- D. It determines the stability of a route and is checked after the Local Preference attribute.
Answer: C
NEW QUESTION # 63
Fill in the blank: In BGP, a route received from an ___________ peer will not be advertised to another ___________ peer by default.
- A. EBGP, EBGP
- B. EBGP, IBGP
- C. Static, Dynamic
- D. IBGP, IBGP
Answer: D
NEW QUESTION # 64
What is the primary use of a virtual link in OSPF?
- A. To balance load across multiple links.
- B. To encrypt OSPF traffic.
- C. To connect an OSPF area to the backbone area through a non-backbone area.
- D. To connect OSPF areas to external networks.
Answer: C
NEW QUESTION # 65
Which of the following are correct about OSPF router ID selection? (Choose two)
- A. It can be manually configured.
- B. It is always the IP address of the loopback interface.
- C. It is chosen based on the highest IP address of any active interface by default.
- D. It is selected based on the lowest MAC address.
Answer: A,C
NEW QUESTION # 66
When configuring static routes, which command is typically used?
- A. set firewall filter
- B. set route aggregate
- C. set routing-options rib-groups
- D. set protocols static route
Answer: D
NEW QUESTION # 67
In a Spine/Leaf IP-Fabric architecture, what is the primary role of the leaf switches?
- A. To provide direct connectivity to servers.
- B. To perform deep packet inspection.
- C. To manage the overall data center network.
- D. To interconnect different data centers.
Answer: A
NEW QUESTION # 68
BGP is primarily used for which purpose in a network?
- A. Internal routing within a single autonomous system
- B. Providing Layer 2 connectivity
- C. Connecting different autonomous systems and route sharing
- D. Encrypting data traffic between networks
Answer: C
NEW QUESTION # 69
What is the primary difference between IBGP and EBGP?
- A. The administrative distance
- B. The use of AS_PATH attribute
- C. The way they advertise routes
- D. The requirement for a full mesh topology
Answer: A
NEW QUESTION # 70
Which of the following are true about Layer 2 and Layer 3 strategies in data center architectures? (Choose two)
- A. Layer 3 strategies help in reducing broadcast domains.
- B. Layer 2 strategies are typically used for creating large, flat networks.
- C. Layer 3 strategies cannot be used in conjunction with Layer 2 environments.
- D. Layer 2 strategies are primarily used for inter-data center connectivity.
Answer: A,B
NEW QUESTION # 71
Which two statement are correct about trunk ports? (Choose two.)
- A. By default, trunk ports can transmit and receive VLAN tagged traffic.
- B. By default, trunk ports can transmit and receive untagged traffic.
- C. Trunk ports typically connect to end users and servers.
- D. Trunk ports typically connect to other switches and routers.
Answer: A,D
NEW QUESTION # 72
Which of the following statements are true regarding Graceful Restart (GR)? (Choose two)
- A. It requires support from both the restarting router and its neighbors.
- B. It decreases network stability during protocol restarts.
- C. It helps in maintaining uninterrupted forwarding during a routing process restart.
- D. It is used to increase the convergence time of the network.
Answer: A,C
NEW QUESTION # 73
In the context of Link Aggregation Groups (LAG), what is the primary purpose of LACP?
- A. To increase the error rate in data transmission
- B. To dynamically manage the bundling of several physical ports
- C. To provide a method for encrypting data packets
- D. To reduce the speed of data transfer
Answer: B
NEW QUESTION # 74
Under which Junos hierarchy is a static route configured?
- A. routing-options
- B. system
- C. routing-instances
- D. protocols
Answer: A
NEW QUESTION # 75
What roles do the Designated Router (DR) and Backup Designated Router (BDR) play in OSPF?
- A. They reduce the number of adjacencies on broadcast networks.
- B. They redistribute routes between OSPF and non-OSPF networks.
- C. They are responsible for generating LSAs for external routes.
- D. They determine the shortest path first algorithm.
Answer: A
NEW QUESTION # 76
Which of the following BGP attributes is considered first in the route selection process?
- A. AS Path Length
- B. Local Preference
- C. MED
- D. Origin
Answer: B
NEW QUESTION # 77
Referring to the exhibit, how many broadcast domains are present in the topology?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 78
What is an advantage of using BFD?
- A. BFD is so lightweight that each protocol will generate its own unique BFD session by default, to replace its own hello messages.
- B. One BFD monitoring session can be used by multiple protocols.
- C. BFD is built to handle the routing table of the entire Internet, unlike IGPS.
- D. BFD built to handle the routing table of the entire Internet, and can safely redistribute it into OSPF.
Answer: B
NEW QUESTION # 79
Martian addresses are:
- A. Unroutable addresses that are generally filtered by routers.
- B. Addresses used for load balancing.
- C. Special routes for interplanetary communication.
- D. Addresses used in MPLS.
Answer: A
NEW QUESTION # 80
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