F50-531 Online Practice Questions and Answers

Which must be sent to the license server to generate a new license?

A. the system's dossier

B. the system's host name

C. the system's base license

D. the system's purchase order number

A site has six members in a pool. All of the servers have been designed, built, and configured with the same applications. It is known that each client's interactions vary significantly and can affect the performance of the servers. If traffic should be sent to all members on a regular basis, which load-balancing mode is most effective if the goal is to maintain a relatively even load across all servers?

A. Ratio

B. Priority

C. Observed

D. Round Robin

A site is load balancing to a pool of web servers. Which statement is true concerning BIG-IP's ability to verify whether the web servers are functioning properly or not?

A. Web server monitors can test the content of any page on the server.

B. Web server monitors always verify the contents of the index.html page.

C. Web server monitors can test whether the server's address is reachable, but cannot test a page's content.

D. Web server monitors can test the content of static web pages, but cannot test pages that would require the web server to dynamically build content.

Assume a virtual server has a ServerSSL profile. What SSL certificates are required on the pool members?

A. No SSL certificates are required on the pool members.

B. The pool members?SSL certificates must only exist.

C. The pool members?SSL certificates must be issued from a certificate authority.

D. The pool members?SSL certificates must be created within the company hosting the BIG-IPs.

Assume a client's traffic is being processed only by a NAT; no SNAT or virtual server processing takes place. Also assume that the NAT definition specifies a NAT address and an origin address while all other settings are left at their defaults. If the origin server were to initiate traffic via the BIG-IP, what changes, if any, would take place when the BIG-IP processes such packets?

A. The BIG-IP would drop the request since the traffic didn't arrive destined to the NAT address.

B. The source address would not change, but the destination address would be changed to the NAT address.

C. The source address would be changed to the NAT address and destination address would be left unchanged.

D. The source address would not change, but the destination address would be changed to a self- IP of the BIG-IP.

A BIG-IP has two load balancing virtual servers at 150.150.10.10:80 and 150.150.10.10:443. The port 80 virtual server has SNAT auto-map configured. There is also a SNAT configured at 150.150.10.11 set for a source address range of 200.200.1.0 / 255.255.255.0. All other settings are at their default states. If a client with the IP address 200.200.1.1 sends a request to https://150.150.10.10, what is the source IP address when the associated packet is sent to the pool member?

A. 200.200.1.1

B. 150.150.10.11

C. Floating self IP address on VLAN where the packet leaves the system

D. Floating self IP address on VLAN where the packet arrives on the system

A virtual server is listening at 10.10.1.100:any and has the following iRule associated with it: when CLIENT_ACCEPTED { if {[TCP::local_port] equals 21 } { pool ftppool } elseif {[TCP::local_port] equals 23 } { pool telnetpool } If a user connects to 10.10.1.100 and port 22, which pool will receive the request?

A. ftppool

B. telnetpool

C. None. The request will be dropped.

D. Unknown. The pool cannot be determined from the information provided.

Assume the bigd daemon fails on the active system. Which three are possible results? (Choose three.)

A. The active system will restart the bigd daemon and continue in active mode.

B. The active system will restart the tmm daemon and continue in active mode.

C. The active system will reboot and the standby system will go into active mode.

D. The active system will fail-over and the standby system will go into active mode.

E. The active system will continue in active mode but gather member and node state information from the standby system.

What is the purpose of MAC masquerading?

A. to prevent ARP cache errors

B. to minimize ARP entries on routers

C. to minimize connection loss due to ARP cache refresh delays

D. to allow both BIG-IP devices to simultaneously use the same MAC address

Assuming there are open connections through an active system's NAT and a fail-over occurs, by default, what happens to those connections?

A. All open connections will be lost.

B. All open connections will be maintained.

C. The "Mirror" option must be chosen on the NAT and the setting synchronized prior to the connection establishment.

D. Long-lived connections such as Telnet and FTP will be maintained while short-lived connections such as HTTP will be lost.

E. All open connections are lost, but new connections are initiated by the newly active BIG-IP, resulting in minimal client downtime.

Under what condition must an appliance license be reactivated?

A. Licenses only have to be reactivated for RMAs - no other situations.

B. Licenses generally have to be reactivated during system software upgrades.

C. Licenses only have to be reactivated when new features are added (IPv6, Routing Modules, etc) - no other situations.

D. Never. Licenses are permanent for the platform regardless the version of software installed.

Which statement accurately describes the difference between two load-balancing modes specified as "member" and "node"?

A. There is no difference; the two terms are referenced for backward compatibility purposes.

B. When the load-balancing choice references "node", priority group activation is unavailable.

C. Load-balancing options referencing "nodes" are available only when the pool members are defined for the "any" port.

D. When the load-balancing choice references "node", the addresses' parameters are used to make the load-balancing choice rather than the member's parameters.

A site wishes to perform source address translation on packets from some clients but not others. The determination is not based on the client's IP address, but on the virtual servers their packets arrive on. What could best accomplish this goal?

A. A SNAT for all addresses could be defined, and then disable the SNAT processing for select VLANs.

B. Some virtual servers could be associated with SNAT pools and others not associated with SNAT pools.

C. The decision to perform source address translation is always based on VLAN. Thus, the goal cannot be achieved.

D. The decision to perform source address translation is always based on a client's address (or network). Thus, this goal cannot be achieved.

Which statement is true about the synchronization process, as performed by the Configuration Utility or by typing b config sync all?

A. The process should always be run from the standby system.

B. The process should always be run from the system with the latest configuration.

C. The two /config/bigip.conf configuration files are synchronized (made identical) each time the process is run.

D. Multiple files, including /config/bigip.conf and /config/bigip_base.conf, are synchronized (made identical) each time the process is run.

When upgrading a BIG-IP redundant pair, what happens when one system has been updated but the other has not?

A. Synching should not be performed.

B. The first system to be updated will assume the Active role.

C. This is not possible since both systems are updated simultaneously.

D. The older system will issue SNMP traps indicating a communication error with the partner.