202-450 LPIC-2 Exam 202 v4.5 Practice Questions
Prepare for 202-450 with more than an answer.
- Exam fee
- $200 USD
- Level
- Professional
- Valid for
- 5 years
Domains covered on the exam 6
- Domain Name Server8%
- HTTP Services11%
- File Sharing8%
- Network Client Management11%
- E-Mail Services8%
- System Security14%
- 1
Complete:
What is the path to the global Postfix configuration file?
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Correct answer: A
A
- 2
Which of these tools, without any options, provides the most information when performing DNS queries?
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Correct answer: A
A
- 3
A financial services company is building a two-node, active/passive web server cluster to ensure high availability for a critical application. The application data must be synchronously replicated between the two nodes in real-time. If the primary node fails, the secondary node must be able to take over immediately with identical data.
The storage architecture involves a dedicated block device (
/dev/sdb1) on each server for the application data. The company wants to manage the replicated data using a logical volume to allow for flexible resizing and snapshotting in the future.Which combination of technologies provides the most appropriate solution to meet these requirements for block-level replication and flexible volume management?
graph TD subgraph Node1 [Primary Server] WebApp1[Web App] LVM1[LVM: /dev/vg_data/lv_web] DRBD1[DRBD Primary: /dev/drbd0] Disk1[/dev/sdb1] WebApp1 --> LVM1 LVM1 --> DRBD1 DRBD1 --> Disk1 end subgraph Node2 [Secondary Server] WebApp2[(Web App - Standby)] LVM2[(LVM)] DRBD2[DRBD Secondary: /dev/drbd0] Disk2[/dev/sdb1] WebApp2 -.-> LVM2 LVM2 -.-> DRBD2 DRBD2 --> Disk2 end DRBD1 DRBD2Show answer details
Correct answer: C
This architecture correctly layers the technologies. DRBD (Distributed Replicated Block Device) provides the required real-time, synchronous block-level replication, creating a virtual block device (
/dev/drbd0) that is identical on both nodes. Building LVM on top of this DRBD device allows the replicated storage to be managed as a flexible logical volume, meeting all requirements. Rsync is not real-time block-level replication. NFS creates a single point of failure on the primary node. LVM on top of DRBD is the standard 'stack' for this use case. - 4
Which Postfix command can be used to rebuild all of the alias database files with a single invocation and without the need for any command line arguments?
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Correct answer: B
B
- 5
After the installation of Dovecot, it is observed that the dovecot processes are shown in ps ax like this:
In order to associate the processes with users and peers, the username, IP address of the peer and the connection status, which of the following options must be set?
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Correct answer: D
D
- 6
Which configuration parameter on a Postfix server modifies only the sender address and not the recipient address?
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Correct answer: C
C
