JNCIA - Junos - Post Training Assessment

With regard to the Junos software architecture, which two of the following are found on all Junos devices? (Choose two.)

• multiple software daemons

• separation of control and forwarding

• separate management interface (fxp0)

• application-specific integrated circuits (ASICs)

The Junos software kernel is based on which operating system?

• Solaris

• SUSE Linux

• FreeBSD

• Red Hat Linux

Which two statements are correct regarding the internal link between the control plane and forwarding plane? (Choose two.)

• The internal link has a built-in rate limiter that is configurable.

• The internal link rate limits exception traffic to protect the Routing Engine against denial-of-service attacks

• The internal link has a built-in rate limiter that is not configurable.

• The internal link rate limits transient traffic to protect the Routing Engine against denial of service attacks

What are two functions of the Packet Forwarding Engine? (Choose two.)

• to build the Layer 2 forwarding table

• to forward packets based on the forwarding table

• to send ICMP time exceeded messages when the TTL reaches 0

• to implement policing, firewall filtering, and class of service (CoS)

Which statement about the Junos CLI is true?

• Automatic word completion can be disabled in operational mode

• Automatic command completion is disabled by default in Junos

• Automatic word completion is only accomplished by pressing the Tab key

• Automatic word completion is only accomplished by pressing the Spacebar.

The auto-complete feature in the Junos CLI is triggered by which methods?

• pressing the Spacebar for both command and variable completion

• pressing the Spacebar for only command completion and the Tab key for only variable completion

• pressing the Spacebar for only variable completion and the Tab key for only command completion

• pressing the Tab key for both variable and command completion and the Spacebar for command completion

Which Junos CLI operational command will gracefully shut down a router?

• request system shutdown

• shutdown now

• request system halt

• shutdown -r now

Which two statements are true about the rescue configuration file? (Choose two.)

• It gets updated automatically when you commit.

• You need to create it using the command request system configuration rescue save

• It is rollback file number 50 and you can recover it by issuing rollback 50.

• You can load it by entering rollback rescue.

Which two statements are true about login classes in the Junos OS? (Choose two.)

• . A different login class must be configured for each user.

• . Individual commands can be explicitly allowed or denied.

• A user must be assigned to one of the default login classes

• Each login class is associated with one or more permissions flags.

The monitor traffic command closely resembles which UNIX-based utility?

• . ps -x

• passwd

• la -a -l

• tcpdump