Juniper JN0-281 Übungsprüfungen
Zuletzt aktualisiert am 26.04.2025- Prüfungscode: JN0-281
- Prüfungsname: Data Center, Associate (JNCIA-DC)
- Zertifizierungsanbieter: Juniper
- Zuletzt aktualisiert am: 26.04.2025
Question #1
What is the primary difference between IBGP and EBGP?
- A . The way they advertise routes
- B . The administrative distance
- C . The use of AS_PATH attribute
- D . The requirement for a full mesh topology
Question #2
EVPN/VXLAN is primarily used in modern data centers to:
- A . Increase the physical distance between data centers.
- B . Provide Layer 2 connectivity over a Layer 3 network.
- C . Replace traditional routing protocols.
- D . Enhance the physical security of the data center.
Question #3
In the context of data center networking, what is the primary purpose of an Underlay Network?
- A . To provide a physical infrastructure for an Overlay Network.
- B . To handle external network connections exclusively.
- C . To facilitate virtual machine migrations.
- D . To encrypt data traffic between servers.
Question #4
When configuring static routes, which command is typically used?
- A . set protocols static route
- B . set route aggregate
- C . set firewall filter
- D . set routing-options rib-groups
Question #5
How does VLAN tagging benefit network segmentation?
- A . By encrypting data traffic between VLANs.
- B . By ensuring the same IP address range can be used in different VLANs.
- C . By enabling the identification and separation of traffic belonging to different VLANs.
- D . By providing a backup path for data in case of link failure.
Question #6
What happens if a frame with a known destination MAC address enters a switch?
- A . The egress PFE performs a MAC address lookup and determines the ingress PFE and port.
- B . The ingress PFE sends the header information to the RE.
- C . The ingress PFE performs a MAC address lookup and determines the egress PFE and port.
- D . The MAC address is added to the bridge table.
Question #7
What is the purpose of using route reflectors in BGP?
- A . To encrypt BGP messages
- B . To reduce the number of required IBGP sessions in a network
- C . To increase the speed of BGP convergence
- D . To automatically select the best route
Question #8
Which of the following are true regarding port modes in a VLAN setup? (Choose two)
- A . An access port can carry traffic for multiple VLANs.
- B . A trunk port can carry traffic for multiple VLANs.
- C . An access port carries traffic only for a single VLAN.
- D . A trunk port is used exclusively for inter-switch links.
Question #9
What roles do the Designated Router (DR) and Backup Designated Router (BDR) play in OSPF?
- A . They redistribute routes between OSPF and non-OSPF networks.
- B . They are responsible for generating LSAs for external routes.
- C . They reduce the number of adjacencies on broadcast networks.
- D . They determine the shortest path first algorithm.
Question #10
In troubleshooting a Virtual Chassis setup, what is a common issue to look for?
- A . Incompatible software versions between member switches
- B . Too many switches in a single Virtual Chassis configuration
- C . Use of copper cables for inter-switch connections
- D . Activation of all ports for Virtual Chassis connections