Prep Test Flashcards
Question 17 of 90 If a North American version of an ISDN PRI circuit with 23 bearer channels and one signaling channel were used to transfer data, what would be the available bandwidth it could provide? Answers A. 34.368 Mbps B. 64 Kbps C. 2.048 Mbps D. 1.536 Mbps E. 56 Kbps
D.
1.536 Mbps
You have installed a wireless access router and set the 802.11n network to use 2.4 frequency. Most of the devices on the network can connect to the wireless network but devices fail to connect. You have verified the configuration and found it to be correct on both the devices. What could be the probable cause?
Answers
A.
Limited connectivity due to channel overlap
B.
Lack of connectivity due to distance limitations
C.
Lack of connectivity due to frequency mismatch
D.
Too many devices connected to the wireless router
C.
Lack of connectivity due to frequency mismatch
Question 23 of 90 If you send a query to www.practice-labs.com, which of the following server is likely to return a response from its cache? Answers A. Forwarding server B. Root server C. Authoritative-Only DNS Servers D. Recursive
D.
Recursive
You are required to send a file to a network device file system without the use of authentication, cryptographic mechanisms or reliability functionality. Which of the following would you choose to use? Answers A. SFTP B. FTPS C. TFTP D. Console connection E. FTP
C.
TFTP
Trivial File Transfer Protocol (TFTP)
Question 27 of 90 You are creating a single IPv4 subnet that requires all computers to receive specific type of packets and process them. If the subnet has a router that protects these packets from being forward, then which of the following have you created? Answers A. Physical domain B. Multicast domain C. Broadcast domain D. Collision domain Assistance
C.
Broadcast domain
A single IPv4 subnet is always configured within a single LAN segment. This means that the subnet in question is equivalent in scope to a broadcast domain.
You use a Web browser to remotely connect and monitor multiple network devices. Which of the following protocol is being used in this case? Answers A. Telnet B. SSH C. HTTP D. HTTPS
D.
HTTPS
Question 35 of 90 You have implemented a technology allows you efficiently allocate IP addresses by adding multiple layers of the addressing hierarchy. It also allows arbitrary length prefix for IPv4 address space on your network. Which of the following technology have you implemented? Answers A. Multiple Length Subnet Masking (MLSM) B. Classless Inter-Domain Routing (CIDR) C. Variable Length Subnet Masking (VLSM) D. Classless Link Subnet Masking (CLSM)
C.
Variable Length Subnet Masking (VLSM)
The classful architecture of IPv4 networks caused a waste of addresses that quickly became a problem as more addresses were needed. Instead of having fixed subnet masks for specific IP address ranges, Variable Length Subnet Masking (VLSM) was introduced. It is a technique that allows for arbitrary length IPv4 address prefixes such that larger address spaces could be
Question 40 of 90 If your wireless LAN was running with 2.4GHz and with the maximum stream data rate of maximum of 2 Mbps, which wireless LAN would it be? Answers A. IEEE 802.11 B. IEEE 802.11g C. IEEE 802.11b D. IEEE 802.11a E. IEEE 802.11n
A.
IEEE 802.11
IEEE 802.11 is a set of media access control (MAC) and physical layer specifications for implementing wireless local area network (WLAN) computer communication in the 2.4GHz frequency bands. The standard provides the basis for wireless network products using the Wi-Fi brand. The maximum stream data rate is 2 Mbps.
Question 50 of 90 A \_\_\_\_\_\_\_\_ data circuit is composed of 16 \_\_\_\_\_\_ lines and provides a data rate 34.368 Mbps. Which of the following pairs fill in the blanks correctly and in the correct order? Answers A. E1 and E3 B. T1 and T3 C. T3 and T1 D. E3 and E1
D.
E3 and E1
The E-carrier is a carrier system for digital transmission of multiplexed telephone calls. E1 circuits can transmit up to 30 telephone calls simultaneously over a single transmission line of copper wire. The corresponding data rate of a single E1 circuit 2.048 Mbps. A E3 circuit is composed
Question 51 of 90 Which of the following protocols is considered a type of directory service? Answers A. AAA B. RADIUS C. Kerberos D. TACACS+ E. LDAP
E.
LDAP
The Lightweight Directory Access Protocol (LDAP) is an open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services over an Internet Protocol network. Directory services allow the sharing of information about users, systems, networks, services, and applications throughout the network. LDAP offers a centralized directory server for network resources to query when authentication is attempted using a username and password. LDAP is typically used in single sign-on scenarios.
Question 56 of 90 Assume that there is password of 8 characters that comprises of alphabets, numbers, and special characters. If you need to brute force this password, what is the number of combinations that you might have to try? Answers A. 916 Million B. 2.9 Quadrillion C. 218 Trillion D. 15 Million E. 238328
B.
2.9 Quadrillion
Question 57 of 90 You are installing a twisted pair network cabling type that supports up to 1 Gbps Ethernet connectivity. However, you are asked to replace this with an improved specification of the same type of cabling that further mitigates the amount of crosstalk experienced by the twisted pairs. Which copper cabling categories would you use for this? Answers A. Cat 5 B. Cat 5a C. Cat 5e D. Cat 4 dwidth (100 MHz) and physical construction remain the same.
C.
Cat 5e
Category 5 cable, commonly referred to as Cat 5, is a twisted pair cable for computer networks. The cable standard provides the performance of up to 100 MHz and is suitable for the 10, 100 and 1000BASE-T Ethernet over twisted pair standards. The enhanced Category 5e specification improves upon the category 5 specification by revising and introducing new specifications to further mitigate the amount of crosstalk. The ban
Question 69 of 90 You are interconnecting fiber optic cabling in a telecom closet. You discover that the only types of patch cables available to you are those with SC connectors. Which transceiver type is required? Answers A. SFP B. GBIC C. QSFP D. SFP+
B.
GBIC
A Gigabit Interface Converter (GBIC) is a hot-swappable optic module transceiver that can terminate different types of fiber optic cabling. The connector type used for GBIC modules is SC. It is generally larger than the more popular SFP standard and is slowly being phased out.
Question 72 of 90
Under which circumstance should an IP helper address be used?
Answers
A.
When routing is not available to reach a remote network
B.
A DHCP server sends a request to a client within its own subnet
C.
A client sends a DHCP request to a server outside of its subnet
D.
A client sends a DHCP request to a server within its own subnet
In small networks, where only one IP subnet is being managed, DHCP clients communicate directly with a DHCP on the same subnet. However, DHCP servers can also provide IP addresses for multiple subnets.
I
Question 82 of 90
You have created a range of IP addresses that are defined within a DHCP server to be allocated to clients requesting IP addressing information. This range is meant to serve a specific segment on the network
Which of the following have you created? Answers A. DHCP Allocation Range (DAR) B. Pond C. Pool D. IP Range
C.
Pool
