Chapter 16. Practice Exam 2 | Solaris 9 Network Administrator Exam Cram 2 (Exam CX-310-044)

Chapter 16. Practice Exam #2

This chapter provides another 64 questions on the topics that pertain to Exam 310-044, "Sun Certified Network Administrator for the Solaris 9 Operating Environment." Like the first practice exam, this exam must be completed in 105 minutes. The pass mark for this practice exam is also 70%.

Question 1	Match the following protocols with the correct layer at which each operates. A. TCP B. FTP C. ICMP D. PPP 1. Network Interface layer 2. Internet layer 3. Transport layer 4. Application layer
Question 2	This DHCP configuration file is created when you run the configuration utilities, dhcpconfig or dhcpmgr . The file should never be manually edited. In previous versions of Solaris, the file was /etc/default/dhcp . What is this filename in Solaris 9? A. /etc/default/dhcpsvc.conf B. /etc/inet/dhcpsvc.conf C. /etc/dhcp/dhcpsvc.conf D. /var/dhcp/dhcpsvc.conf
Question 3	You have a primary network interface, hme0 , and you run the command to find out the speed at which the interface is running by typing ndd /dev/hme link_speed . The value returned is 1 . What does this tell you about the speed of the network interface? A. The interface is running at 10Mbps. B. The interface can negotiate the correct speed from the network. C. The interface is running at 100Mbps. D. The interface is running at 1000Mbps.
Question 4	When using multipathing, the in.mpathd daemon detects failures on monitored network interfaces. Which file, containing a number of settings, is referenced when the daemon starts? A. /etc/default/mpathd B. /etc/inet/mpathd C. /etc/default/inetd D. /etc/default/init
Question 5	When a diskless client boots, what is the only piece of information it is able to provide to a server to continue? A. The hostname B. The IP Address C. The Ethernet Address D. The IP Address of its boot server
Question 6	Which file specifies the canonical name for a system? A. /etc/inet/ hosts B. /etc/inet/networks C. /etc/nodename D. /etc/system
Question 7	When trying to contact a remote host, you get the message: Destination unreachable Which protocol would initiate this error message? A. IP B. ARP C. TCP D. ICMP
Question 8	To find out whether your system is using DNS as part of the name-resolution search order, which file would you consult ? A. /etc/inet/hosts B. /etc/resolv.conf C. /etc/nsswitch.conf D. /etc/named.conf
Question 9	Which IEEE standard identifier is used to represent ethernet? A. 802.3 B. 802.4 C. 802.5 D. 802.2
Question 10	Which of the following are features of the UDP protocol? Choose 2. A. UDP has a low overhead. B. UDP has a high overhead. C. UDP is a connectionless, stateless, and unreliable protocol. D. UDP is a connection-oriented, stateful, and reliable protocol. E. UDP requires acknowledgement messages from the receiving host.
Question 11	Which command allows you to continuously view changes to the routing table? A. route monitor B. route flush C. netstat -r D. netstat -i
Question 12	What is the default network mask for a class B network? A. 255.0.0.0 B. 255.255.0.0 C. 255.255.255.0 D. 255.255.255.240
Question 13	When configuring your DHCP server, you decide that your datastore option is going to be SUNWnisplus . For this option, the location is going to be which of the following? A. An absolute pathname B. A relative pathname C. The root ( / ) directory D. An NIS+ table name
Question 14	The Point-to-Point protocol operates at which layer of the TCP/IP model? A. Application layer B. Internet layer C. Network Interface layer D. Transport layer
Question 15	The pntadm utility is used to manage DHCP network tables. Which of the following can be achieved using pntadm ? Choose 2. A. Add networks that are under DHCP management. B. Remove networks that are under DHCP management. C. Create alias names for networks under DHCP management. D. Modify the DHCP datastore type.
Question 16	Which of the following are reasons why many network applications need time synchronization to work properly? Choose 2. A. Many encryption algorithms use time as part of the encryption key. B. DHCP clients must be time synchronized with the DHCP server when they request a lease. C. Time stamps are used on Ethernet II frames , requiring the sender and the receiver to be time synchronized. D. Files and directories are time stamped by applications when they are created or modified
Question 17	Which two utilities should be used to manage the dhcptab table? Choose 2. A. dhcpmgr B. pntadm C. dhcpconfig D. dhtadm
Question 18	You have a system with a primary network interface hme0 and a logical network interface configured with the IP address 192.168.7.4 . You do not know to which logical interface the IP address is assigned, but the logical interface is no longer required. Which command will successfully remove this logical interface? A. ifconfig hme0 down B. ifconfig hme0 removeif 192.168.7.4 C. ifconfig hme0 192.168.7.4 down D. ifconfig 192.168.7.4 hme0 removeif
Question 19	When you run the netstat -i command, you notice a high number of output errors occurring on the primary interface. Which two scenarios could be the cause of this? A. A duplicate IP address is on the same network. B. Several hosts are trying to send data at the same time. C. The system has a faulty network adapter. D. A remote host on the network has a hardware problem.
Question 20	Which options of the ifconfig command are used to set up a test address for a network interface being used in a multipath environment? Choose 2. A. deprecated B. -failover C. failover D. -deprecated E. unplumb
Question 21	Which of the following are true about DNS zones of authority? Choose 2. A. Zones can cross one or more domains. B. Zones are restricted to a single domain. C. Zones comprise a domain and the data associated with the domain. D. Zones comprise the domain, but not the associated data within the domain.
Question 22	Which address type was present in IPv4, but is not used in IPv6? A. Anycast B. Multicast C. Unicast D. Broadcast
Question 23	NTP servers belong to a hierarchy called strata . How many strata are there? A. 5 B. 10 C. 15 D. 20
Question 24	Your ultra10 system (hostname alpha ) has a primary network interface, hme0 , and a logical interface, hme0:1 . You want to add a further logical interface with the IP address 192.168.9.9 . Which of the following options will do this correctly? Choose 2. A. ifconfig hme0 plumb 192.168.9.9 up B. ifconfig hme0:2 plumb 192.168.9.9 up C. ifconfig hme0 addif 192.168.9.9 up D. ifconfig hme0 -add 192.168.9.9 up E. ifconfig addif hme0 192.168.9.9 up
Question 25	Which configuration file does the in.ndpd process read on startup? A. /etc/inet/ndpd.conf B. /etc/ndpd.conf C. /etc/inet/ipnodes D. /etc/ipnodes
Question 26	DNS domains such as com, gov, edu , and org belong to which type of domain? A. Root domain B. Top-level domain C. Second-level domain D. Fully-qualified domain name
Question 27	TCP uses which kind of connection to provide concurrent data transfer in both directions? A. Full-duplex B. Simplex C. Half-duplex D. Double duplex
Question 28	Output from the netstat -i command can be used to compute the collision rate on a network interface. Your output has reported 352 collisions and 16000 output packets. What is the collision rate as a percentage? A. 4.4% B. 2.2% C. 1.1% D. 8.8%
Question 29	You want to remove all entries from the routing table. Which command (and option) will achieve this? A. route delete default B. route flush C. init 2 D. route monitor
Question 30	The file /etc/default/mpathd sets some initial variables that are used by the in.mpathd daemon. One of these variables defines how long to wait before marking an interface as having failed. Which variable does this? A. FAILURE_TIMEOUT B. FAILURE_DELAY C. FAILURE_DETECT D. FAILURE_DETECTION_TIME
Question 31	The Hardware layer of the TCP/IP model is not always identified as a separate layer in its own right. Which layer is described as incorporating the Hardware layer as part of its function? A. Network Interface layer B. Internet layer C. Transport layer D. Application layer
Question 32	Which option for the arp command is used to delete a static entry from the ARP cache? A. -s B. -d C. -a D. -f
Question 33	How many bits of a class C IP address are used to denote the network portion of the address, assuming a standard netmask of 255.255.255.0 ? A. 8 B. 16 C. 18 D. 24
Question 34	When using IP multipathing, why is it necessary to create a test address for a network interface? A. To provide a failover address that can be used in the event of a failure. B. To allow the in.mpathd process to monitor the status of the interface. C. To enable testing while multipathing is being set up. D. To aid outbound load balancing when network traffic is being routed to multiple hosts.
Question 35	At which layer of the TCP/IP model does routing take place? A. Internet layer B. Transport layer C. Application layer D. Network Interface layer
Question 36	Which of the following fields are present in an Ethernet II frame? Choose 3. A. Ethernet address of the destination host B. IP address of the destination host C. Ethernet address of the sending host D. IP address of the sending host E. Acknowledgement number F. Cyclic redundancy check (CRC)
Question 37	Which file is used to assign permanent network mask entries? A. /etc/inet/hosts B. /etc/inet/ netmasks C. /etc/inet/networks D. /etc/hosts
Question 38	The dhtadm command is used to manage the DHCP service configuration table. Which option creates the DHCP table? A. -M B. -C C. -A D. -D
Question 39	Which statement describes unsolicited ARP messages? A. Messages where a specific ethernet address was asked for by a host B. Messages where a specific IP address was asked for by a host C. Messages where the information about a host that issued an ARP request is stored D. Messages where the IP address for a host that issued an ARP request is stored
Question 40	Which layer of the TCP/IP model handles flow control? A. Transport layer B. Network Interface layer C. Internet layer D. Application layer
Question 41	Which option for the pntadm command is used to view changes made to the DHCP table? A. -M B. -C C. -A D. -P
Question 42	Which of the following are reasons why IPv6 was needed? Choose 2. A. IPv6 provides a solution to the shortfall in IPv4 addresses. B. IPv6 addresses are split according to a number of network classes. C. IPv6 provides simpler routing. D. IPv6 provides greater administrator control through manual assigning of IPv6 addresses.
Question 43	Which file would you create, prior to rebooting the system, to configure an IPv6 address on the hme0 interface? A. /etc/hostname6.hme0 B. /etc/hostname.hme0 C. /etc/hostname6.hme6 D. /etc/hostname.hme0:6
Question 44	NTP servers use a drift file to handle differences between the server and the reference time source. What is the default location of the drift file? A. /etc/ntp.drift B. /var/ntp/ntp.drift C. /var/adm/ntp.drift D. /etc/ntp/ntp.drift
Question 45	Which of the following are functions of the client DHCP process dhcpagent ? Choose 2. A. Listens for server responses B. Releases or renews leases C. Configures the DHCP client D. Manages the list of available IP addresses
Question 46	Which of the following are cases in which logical network interfaces are used? Choose 2. A. To ease network performance problems by spreading network traffic between the primary and logical interfaces B. With a server running a number of applications that need to appear as separate systems C. With servers using a high-availability failover mechanism, such as IP multipathing D. To provide hardware resilience
Question 47	What is the formula for calculating the collision rate on a network interface? A. Multiply the number of collisions by 100 and then divide by the total number of input packets. B. Multiply the total number of input packets by 100 and then divide by the number of collisions. C. Multiply the total number of output packets by 100 and then divide by the number of collisions. D. Multiply the number of collisions by 100 and then divide by the total number of output packets.
Question 48	What type of connection does TCP establish before starting data transmission? A. Full-duplex connection B. Half-duplex Connection C. Virtual circuit connection D. Physical connection
Question 49	Solicited ARP messages are held in the ARP cache, by default, for 20 minutes. How long are unsolicited messages held in the cache? A. 2 minutes B. 5 minutes C. 10 minutes D. 20 minutes
Question 50	Which file provides IPv6 address-to-hostname mapping, similar to the IPv4 file /etc/inet/hosts ? A. /etc/ipnodes B. /etc/inet/ipnodes C. /etc/ip6hosts D. /etc/inet/ip6hosts
Question 51	A dhcp_network file is present for each network served by a DHCP server. The dhcp_network filename is created from which two items? Choose 2. A. The IP address of the network being supported B. The type of datasource C. The hostname of the DHCP server D. The IP address of the DHCP server
Question 52	Which server startup script starts the DNS daemon in.named ? A. /etc/rcS.d/S30network.sh B. /etc/rc2.d/S30sysid.net C. /etc/rc2.d/S72inetsvc D. /etc/rc2.d/S69inet
Question 53	Which of the following are valid representations of the IPv6 loopback address? Choose 3. A. ::1 B. 1 C. 0000:0000:0000:0000:0000:0000:0000:0001 D. 0:0:0:0:0:0:0:1 E. 0000::0000::1
Question 54	The process of subnetting provides the facility to break down a network into a number of subnetworks. Which of the following are valid uses for subnetting? Choose 3. A. To associate subnetworks with a specific geographical area, or department B. To reduce network contention by separating local subnetworks C. To reduce the number of IP addresses that need to be administered D. To enhance security by restricting access to a subnetwork E. To simplify the management of the network
Question 55	One media type uses four pairs of wires, one pair for sending, one for receiving and two for bi-directional communication. It can be implemented over UTP Cat-3, CAT-4 or Cat-5 cables for distances of up to about 100 meters . Which media type is this? A. 100BASE-T4 B. 100BASE-FX C. 100BASE-TX D. 100BASE-X
Question 56	In DHCP, what does the dhcp_network file contain? A. Configuration information for the dhcpagent process B. The range of IP addresses under the DHCP server control, for a single network C. The range of IP addresses under the DHCP server control, for all networks D. Configuration information for the DHCP server
Question 57	An NTP server's configuration file, /etc/inet/ntp.conf , is created by copying a template file. Where is the template file located? A. /etc/inet/ntp.master B. /etc/inet/ntp.temp C. /etc/inet/ntp.client D. /etc/inet/ntp.server
Question 58	The transition to IPv6 allows IPv4-compatible IPv6 addresses, where an IPv4 address is embedded in the IPv6 address. The IPv6 address 0000:0000:0000:0000:0000:FFFF:C0A8:1507 contains the IPv4 address 192.168.21.7 (represented in hexadecimal). Which part of this IPv6 address indicates that an embedded IPv4 address is present? A. C0A8 B. 1507 C. FFFF D. 0000
Question 59	The dhcpmgr utility provides a graphical interface for easy configuration of a DHCP server. In which directory can this command be found? A. /usr/bin B. /usr/sadm/bin C. /usr/sadm/admin D. /usr/sadm/admin/bin
Question 60	TCP manages flow control on the sending side by using a congestion window. What does this window do to manage the flow of data? A. The congestion window is halved in size when acknowledgements are received and is doubled in size when congestion is detected . B. The congestion window is doubled in size when acknowledgements are received and halved in size when congestion is detected. C. The congestion window informs the receiving host of the number of packets sent. D. The congestion window requests the number of packets that have been received from the receiving host.
Question 61	Which layer of the TCP/IP model handles the conversion and presentation of data? A. Application layer B. Internet layer C. Network Interface layer D. Transport layer
Question 62	In this network topology, the output of one node connects to the input of the next . Each host is connected only to its adjacent neighbors on each side. Which topology is being described? A. Bus B. Ring C. Star D. VLAN
Question 63	The RARP daemon in.rarpd will start at system bootup only if which directory exists? A. /tftpboot B. /boot C. /boottftp D. /tftp
Question 64	The use of logical network interfaces can have some disadvantages. Which of the following are disadvantages? Choose 2. A. Logical interfaces can create performance bottlenecks as they are all tied to a specific physical ethernet interface. B. Logical interfaces are more expensive. C. Logical interfaces create a significant administration overhead. D. Eash logical interface must be configured at system boot time, which can slow down the overall boot time of a system when multiple logical interfaces are used.