Question 1 | How many Sun Quad Fast Ethernet cards can be aggregated to take full advantage of Sun Trunking? |
A1: | Answer A is correct because up to two Sun Quad Fast Ethernet cards can be aggregated to produce a throughput of 800Mbps. Answers B, C, and D are incorrect because these are not valid Sun Trunking configurations. |
Question 2 | Which file does the in.mpathd daemon reference when it starts up? |
A2: | Answer B is correct because the file that in.mpathd references on startup is /etc/default/mpathd . Answers A, C, and D are incorrect because these filenames do not exist. |
Question 3 | Which of the following are features of IPMP? Choose 2. -
A. Enables network interfaces to failover to an alternate interface -
B. Provides outbound load balancing of network traffic when multiple destinations are used -
C. Allows up to 8 full-duplex ports on two Sun Quad Fast Ethernet cards to obtain 800Mbps full-duplex throughput -
D. Links up to two full-duplex ports on a Sun Gigabit Ethernet Adapter to obtain 2Gbps full-duplex performance between a Sun server and a trunking-enabled switch |
A3: | Answers A and B are correct because IPMP enables network interfaces to failover to alternate network interfaces, and it also provides outbound load balancing of network traffic when multiple destinations are used. Answers C and D are incorrect because these are features of Sun Trunking. |
Question 4 | Which of the following conditions would constitute a repaired network interface? -
A. Ten consecutive ICMP responses are received from target hosts . -
B. The IFF_RUNNING flag returns an operational status. -
C. Five consecutive ICMP responses are received from target hosts. -
D. Ten consecutive ICMP responses are received from target hosts and the IFF_RUNNING flag returns an operational status. |
A4: | Answer D is correct because both of the conditions need to be satisfied to mark an interface as "repaired" ”namely, that ten consecutive ICMP responses are received from target hosts and the IFF_RUNNING flag returns an operational status. Answer A is incorrect because although this is one of the conditions that needs to be met, it is insufficient on its own to mark an interface as "repaired." Answer B is incorrect for the same reason. Answer C is incorrect because it is not a condition that can mark an interface as "repaired." |
Question 5 | Which command creates a test address for the hme0 interface, to use the IP address 192.168.28.55 , and uses the next available logical interface number? -
A. ifconfig hme0 addif 192.168.28.55 deprecated netmask + broadcast + -failover up -
B. ifconfig hme0:2 192.168.28.55 deprecated netmask + broadcast + -failover up -
C. ifconfig hme0 addif 192.168.28.55 netmask + broadcast + up -
D. ifconfig hme0 addif 192.168.28.55 deprecated netmask + broadcast + failover up |
A5: | Answer A is correct because the command ifconfig hme0 addif 192.168.28.55 deprecated netmask + broadcast + -failover up creates a test address for hme0 that uses the next available logical interface number. Answer B is incorrect because even though this would create a valid test address for hme0 , it would not use the next available logical interface number and could destroy and replace an existing logical network interface. Answer C is incorrect because this creates an operational logical interface, not a test address for in.mpathd to use. Answer D is incorrect because this would create a logical address to be used as a failover. The test address cannot be used as a failover. |
Question 6 | Which of the following are requirements of IPMP to be able to provide a Failover interface in the event of a failure? Choose 3. -
A. You must be running Solaris 9 or later. -
B. You must be running Solaris 8 10/00 or later. -
C. There must be more than one physical network interface installed. -
D. Each interface participating in IPMP must belong to the same multicast group . -
E. Each interface participating in IPMP must belong to a unique multicast group. |
A6: | Answers B, C, and D are correct because IPMP requires that you must be running Solaris 8 10/00 or later, there must be more than one physical network interface installed, and each interface participating in IPMP must belong to the same multicast group. Answer A is incorrect because you do not need to be running Solaris 9 to use IPMP ”you must be running Solaris 8 10/00 or later. Answer E is incorrect because each interface participating in IPMP must belong to the same multicast group, not a unique one. |
Question 7 | Which Trunking policy distributes the traffic evenly across the physical interfaces that make up the trunk by using each interface in turn ? |
A7: | Answer B is correct because the round robin Trunking policy uses each physical interface in turn to evenly distribute the traffic. Answer A is incorrect because this Trunking policy uses the last three bits of the source and destination MAC address to determine the port to use. Answer C is incorrect because this Trunking policy uses the four bytes of the destination IP address to determine the path to take. Answer D is incorrect because this Trunking policy uses the four bytes of both the source and destination IP addresses to determine the path to take. |
Question 8 | Which option to the ifconfig command identifies an interface as a test address? -
A. deprecated -
B. +failover -
C. -failover -
D. group |
A8: | Answer C is correct because the -failover option marks an interface as a test address that must not be used as a failover in the case of an interface failing. Answer A is incorrect because the deprecated option is used to prevent normal applications from using the interface. Answer B is incorrect because the +failover option identifies the interface as a failover address to be used in the event of an interface failing. Answer D is incorrect because the group option identifies a multicast group that is assigned to network interfaces participating in a multipathing environment. |