A company has two buildings connected by a fiber link. Each building has its own LAN with multiple VLANs. Users in Building A need to reach servers in Building B. Which device should be placed at each building's edge to forward traffic between the VLANs and across the fiber link?

A switch in Building A and a router in Building B, with the fiber link connecting them

A router at each building, with the fiber link connecting the two routers

A router in Building A and a switch in Building B, with the fiber link connecting them

A switch at each building, configured with inter-VLAN routing on the fiber link

Which two primary functions are performed by a router in a network?

Path selection and packet forwarding

Broadcast domain segmentation and collision domain creation

MAC address learning and frame forwarding

IP address assignment and DNS resolution

In a typical network, what is the primary role of a switch compared to a router?

A switch provides connectivity within a LAN, while a router provides connectivity between LANs.

A switch forwards packets based on IP addresses, while a router forwards frames based on MAC addresses.

A switch connects multiple networks, while a router connects multiple devices within a network.

A switch is used at the network edge, while a router is used only in the core of the network.

A router receives a packet with a destination IP address that does not match any route in its routing table. What will the router do?

It will broadcast the packet to all interfaces

It will send an ICMP redirect to the source

It will forward the packet to the default gateway

A switch receives a frame on port ge-0/0/1 with a source MAC address of 00:11:22:33:44:55. The switch's MAC address table does not have an entry for this MAC address. What will the switch do?

It will flood the frame out all ports

It will add the MAC address to its table and associate it with ge-0/0/1

It will send the frame to the router for MAC address learning

It will drop the frame because the MAC address is unknown

Juniper NetworksCertified Associate, Junos

Domain 1Objective 2

Router and Switch Functions JN0-105 Practice Questions (Page 3)

Part of the Networking Fundamentals domain, which makes up ~24% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 1–1 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

3concepts

Questions 11–15

11application · medium
A company has two buildings connected by a fiber link. Each building has its own LAN with multiple VLANs. Users in Building A need to reach servers in Building B. Which device should be placed at each building's edge to forward traffic between the VLANs and across the fiber link?
Select an answer first
12foundation · easy
Which two primary functions are performed by a router in a network?
Select an answer first
13foundation · easy
In a typical network, what is the primary role of a switch compared to a router?
Select an answer first
14application · easy
A router receives a packet with a destination IP address that does not match any route in its routing table. What will the router do?
Select an answer first
15application · easy
A switch receives a frame on port ge-0/0/1 with a source MAC address of 00:11:22:33:44:55. The switch's MAC address table does not have an entry for this MAC address. What will the switch do?
Select an answer first

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