A company has two internet service providers (ISPs) for redundancy. They run BGP on their edge routers to advertise their public IP prefixes. One ISP link fails. What happens to the traffic?

Traffic is blackholed until the failed ISP is restored

BGP withdraws the route via the failed ISP and traffic is rerouted through the other ISP

BGP sends a redirect to the other ISP to take over the traffic

The router automatically switches to the other ISP without any BGP action

A network administrator wants to simulate network latency and packet loss on a test server to evaluate the failover behavior of a high-availability application. Which Linux tool should they use?

ip route with the metric option

An administrator is configuring a bonded interface on a systemd-based distribution. They want the bond to be created automatically at boot and to persist across reboots. Which approach should they use?

Use /etc/network/interfaces with the bond-slaves option

Create a .netdev file for the bond and a .network file for the bond's IP configuration

Create a udev rule to run ip link add at boot

Add the bonding module to /etc/modules and use ifenslave in a startup script

LPI LPIC-3 High Availability and Storage Clusters

Domain 4Objective 4

364.4 Network High Availability (weight: 5) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 3)

Part of the Topic 364: Single Node High Availability domain, which makes up ~27% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–16 in this domain), expect 2–4 from this objective — we provide 18 practice questions to prepare you well beyond it. (estimate)

18questions here

4free pages

7concepts

Questions 11–15

11expert · medium
A high-availability cluster uses a bonded interface with two NICs. The administrator wants to ensure that if one NIC fails, the other takes over immediately without any packet loss. They also want to monitor the link status. Which bonding option should they enable?
Select an answer first
12application · medium
A company has two internet service providers (ISPs) for redundancy. They run BGP on their edge routers to advertise their public IP prefixes. One ISP link fails. What happens to the traffic?
Select an answer first
13application · medium
A network administrator wants to simulate network latency and packet loss on a test server to evaluate the failover behavior of a high-availability application. Which Linux tool should they use?
Select an answer first
14application · medium
An administrator is configuring a bonded interface on a systemd-based distribution. They want the bond to be created automatically at boot and to persist across reboots. Which approach should they use?
Select an answer first
15expert · hard
A company has two ISPs and runs BGP on their edge router. They advertise the same prefix to both ISPs. They want to prefer one ISP for inbound traffic and use the other only as a backup. Which BGP attribute should they manipulate to achieve this?
Select an answer first

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364.4 Network High Availability (weight: 5) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 3)

Questions 11–15

A high-availability cluster uses a bonded interface with two NICs. The administrator wants to ensure that if one NIC fails, the other takes over immediately without any packet loss. They also want to monitor the link status. Which bonding option should they enable?

A company has two internet service providers (ISPs) for redundancy. They run BGP on their edge routers to advertise their public IP prefixes. One ISP link fails. What happens to the traffic?

A network administrator wants to simulate network latency and packet loss on a test server to evaluate the failover behavior of a high-availability application. Which Linux tool should they use?

An administrator is configuring a bonded interface on a systemd-based distribution. They want the bond to be created automatically at boot and to persist across reboots. Which approach should they use?

A company has two ISPs and runs BGP on their edge router. They advertise the same prefix to both ISPs. They want to prefer one ISP for inbound traffic and use the other only as a backup. Which BGP attribute should they manipulate to achieve this?

Keep studying — Topic 364: Single Node High Availability