network technologies - true/false -multiple choices.

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timer Asked: Apr 15th, 2018

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network technologies

i have 80 multiple choices and true/false questions need to be answered as soon as possible.

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1IPv6 is expected to provide all of the following improvements over traditional IP except: Dynamic configuration of routers New extensions allowing for data integrity checks and encryption An increase in address space from 4 numbers (32-bits) to 16 numbers (128-bits) A new type of address, called an anycast, which allows a frame to be directed to specific host computer groups rather than the traditional broadcast to all network hosts. More efficient routing of packets from source to destination host. 2- Which of the following defines the authoritative name server for a given domain? NS record SN record Record A record 3- The port number for SMTP is ____. 25 23 21 80 Question 4 Which of the following is best suited for video conferencing over the network? packet switching circuit switching Ethernet Token Ring Question 5 Which of the following protocols is responsible for providing information on where data should be delivered? TCP IP HTTP UDP Question 6 URLs (Web addresses) are converted to IP addresses by the ________ server. TCP/IP DNS ICANN DHCP 7- If all users in a multinational organization can send and receive mail to and from colleagues, except for those in the Marketing department, what is probably the source of the problem? the company's SMTP server the company's POP server the Marketing department's SMTP server the Marketing department's POP server Question 8 If all users in a multinational organization can send and receive mail to and from colleagues, but the Marketing department, can not retrieve their email, what is probably the source of the problem? the company's SMTP server the company's POP server the Marketing department's SMTP server the Marketing department's POP server Question 9 All of the statements concerning ICMP are true, except this protocol sits between IP and TCP is used by TCP/P to translate IP addresses into MAC addresses does not control errors; it simply reports that an error occurred it can specify that a network is not reachable or that packets were not delivered is used by many diagnostic utilities like PING and TRACERT Question 10 At what layer of the OSI Model does SNMP operate? Application Session Transport Data Link none of the above Question 11 What is the function of the Acknowledgment field in the TCP datagram? It confirms receipt of the data in a return message to the sender. It confirms the size of the datagram to the recipient, proving that the datagram was not corrupted en route. It confirms the sequence of the datagrams to the recipient. It confirms the length of the datagram's header in a return message to the sender. Question 12 Which of the following DNS utilities resolves a hostname into an IP address? dig host nslookup rndc Question 13 Which of the following is part of the DNS domain tree? Option Include Zone Controls Question 14 To know if a connection to a Web site is secured, look for ____ in the browser address box and a lock icon at the bottom of the browser window. ssl tls cert https Question 15 Which does not rely on SMTP? POP2 HTTP IMAP POP3 Question 16 On a Class A network in the IPv4 addressing scheme, all nodes have which octet(s) in common? the first only the first and second the second only the second and third Question 17 What Transport layer protocol does HTTP rely on? TCP IP UDP ICMP Question 18 Which of the following resource record types defines the mail exchanger? CNAME MX SOA PTR Question 19 In general, the problem that reverse DNS seeks to avoid is called: Spoofing Gated Cost Named Question 20 The DNS component that contains databases of names and their associated IP addresses is/are _____. resolvers name servers name space Both A and B. Question 21 Given the following TCP/IP layout ● ● ● ● IP 202.34.55.6 SM 255.255.255.128 IP XXX.XXX.XXX.XXX SM XXX.XXX.XXX ╔═════════════════════════╗ ══════════════════════════════════════════════════════╣ 202.34.55.18 /225.225.225.128 ║ IP 202.34.55.200 SM 255.255.255.128 IP 202.34.55.201 SM 255.255.255.128║ ║ ═════════════════════════════════════════════════════╣ 202.34.55.190 225.255.255.128 ║ ● ╚═════════════════════════╝ Which of the following would be a legal IP address and subnet mask for XXX.XXX.XXX.XX 202.34.55.19 255.255.255.0 202.34.55.6 255.255.255.128 202.34.55.199 255.255.255.128 202.34.55.13 255.255.255.128 204.34.55.13 255.255.255.0 Question 22 How many valid host IP addresses are available with a network address of 218.41.99.24 and a subnet mask of 255.255.255.240 2 6 14 30 Question 23 How many valid host IP addresses are available with a network address of 218.41.99.24 and a subnet mask of 255.255.255.248 2 6 14 30 Question 24 Which of the following provides a secure channel between two devices at the Network Layer (Layer 3)? SSL IPSec SNMP NTP Question 25 Which of the following is a valid subnet mask? 11111111 . 11111111 . 00001111 . 00000000 11111111 . 11111110 . 11111111 . 00000000 11111111 . 11111111 . 11100000 . 00000000 11111110 . 11111111 . 00001001 . 00000000 Question 26 What is the broadcast IP for 196.23.250.30/27? 196.23.250.3 2 196.23.250.3 3 196.23.250.6 3 196.23.250.6 4 Question 27 Which of the following is NOT considered a private address as per RFC 1918? 63.254.18.7 10.10.10.205 172.30.8. 243 192.168.128.12 8 Question 28 What is the binary equivalent of the following IP address: 172.16.1.0? 10101100 . 00010000 . 00000010 . 00000000 10101100 . 00010000 . 00000011 . 00000000 10101100 . 00010000 . 00000001 . 00000000 10101100 . 00010000 . 00000101 . 00000000 Question 29 What kind of PDU (Protocol Data Unit) is used at the Transport Link layer of the OSI model? Segment Packet/Datagra m Bit Frame Question 30 How many subnets can you have with a subnet mask of 255.255.240 on a Class B network? 8 14 15 30 Question 31 Which protocol uses TCP port 22? SSL SSH SNMP NTP Question 32 An IP address which is permanently assigned to a workstation is called a(n) ____ IP address. static permanent fixed specified Question 33 The binary process used by your computer to find the network ID is called ____. Subnetting Supernetting Multicasting ANDing Question 34 If you need at least 12 subnetworks with a Class C network and you want to have as many hosts as possible on each network, what subnet mask would you use? 255.255.255.25 2 255.255.255.24 0 255.255.255.24 8 255.255.255.22 4 Question 35 An IP address which is assigned only for the current session is called a(n) ____ IP address. fluctuating temporary private dynamic uestion 36 The CDIR notation or prefix notation can be determined by the value of the first octet of the IP address counting the number of 1 bits in the IP address counting the number of 1 bits in the subnet mask the class of the IP address Question 37 Which of the following is NOT considered a private address as per RFC 1918? 10.254.18.7 172.30.14.5 172.79.8. 243 192.168.163.7 1 Question 38 Which of the following network classes does not define public IP address space? Class A Class B Class C Class D Question 39 The number of subnets on a network can be calculated using the formula ____. n 2 *2 n 2 -2 n 2 -4 n 2 -20 Question 40 According to the figure above, what is the new subnet mask of the supernetted network? 255.255.255.25 5 255.255.255.0 255.255.254.0 255.255.0.0 Question 41 Given the network address 1921.131.10.0 and the subnet mask 255.255.255.0, what is the total number of networks and total numbers of hosts per network? 1 network / 255 hosts 1 network /254 hosts 2 networks / 126 hosts 6 networks / 30 hosts Question 42 TCP uses a socket as the basic unit of data transfer. True False Question 43 Which is the most commonly used protocol? SNA TCP/IP NetBIOS IPX/SPX Question 44 You have a Microsoft network with all clients using Windows 9x. You want to organize your TCP/IP configurations to ensure that they can be centrally managed. What application would you use to do this? DNS WINS IPCONFIG DHCP Either A or B Question 45 Which of the following statements is correct? IPX is a connection-based protocol IPX is a connectionless protocol IPX is a part of the TCP/IP protocol suite IPX is based on NETBEUI Question 46 A connection-oriented protocol requires a(n): User Datagram Protocol. ISP. UDP connection. three-way handshake. Question 47 All of the following statements, concerning domain names, are true EXCEPT: The portion of the domain name after the dot (.) is the top-level domain name. The top-level domains are within the second-level domains. Domain names are user-friendly names that take the place of IP addresses. Each second-level domain must be unique within that particular domain. Question 48 TCP and IP are the standard transport and network layer protocols of the Internet. True False Question 49 Which of the following statements concerning packet switching is FALSE? Packet switching is an efficient communications methodology. Packet switching does not require that a dedicated communications circuit be maintained. If Internet nodes are disabled or destroyed, data can travel an alternate route to its destination. All packets must take the same route to their destination. Question 50 Which of the TCP/IP protocols are connection-based? TCP HTTP IP ICMP Question 51 If hosts on a network do not use the same network protocol, what problem will this most likely cause? The network will be slow because the hosts will translate each frame as they receive The host will be unable to communicate with each other The host computer will not boot You will see some messages and files, but they will appear in a different language. Question 52 Given the following TCP/IP layout ● ● ● ● IP 202.34.55.6 SM 255.255.255.128 IP XXX.XXX.XXX.XXX SM XXX.XXX.XXX ╔═════════════════════════╗ ══════════════════════════════════════════════════════╣ 202.34.55.18 /225.225.225.128 ║ IP 202.34.55.200 SM 255.255.255.128 IP 202.34.55.201 SM 255.255.255.128║ ║ ═════════════════════════════════════════════════════╣ 202.34.55.190 225.255.255.128 ║ ● ╚═════════════════════════╝ Which of the following would be a legal IP address and subnet mask for XXX.XXX.XXX.XX 202.34.55.19 255.255.255.0 202.34.55.6 255.255.255.128 202.34.55.199 255.255.255.128 202.34.55.13 255.255.255.128 204.34.55.13 255.255.255.0 Question 53 On a UNIX-based computer, a host file is called hosts and resides in the ____ directory. /boot /bin /sbin /etc Question 54 Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119 and given the following scenario: The green status light of the network interface card is on. PING 127.0.0.1 does successfully execute. You can successfully ping 62.44.56.119, but you can not ping another internal network. The most likely cause of this problem is? The gateway IP is incorrect. The DNS server IP is incorrect. TCP/IP is not properly bound to the network interface. The router's routing table may be incorrect. None of the above. Question 55 Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119 and given the following scenario: The green status light of the network interface card is on. PING 127.0.0.1 does successfully execute. You can successfully ping 192.56.34.202, but you cannot ping 62.44.56.119. The most likely cause of this problem is? The gateway IP is incorrect. The DNS server IP is incorrect. TCP/IP is not properly bound to the network interface. The router's routing table may be incorrect. None of the above. Question 56 When a computer has a(n) ________ IP address, it means that the IP address never changes. static. arbitrary dynamic assigned Question 57 URLs (Web addresses) are converted to IP addresses by the ________ server. TCP/IP DNS ICANN DHCP Question 58 Which of the following standard TCP/IP settings must be assigned before you can contact hosts on other networks? PING Default path Default Gateway Domain Name Services Question 59 The ________ protocol in the TCP/IP suite is responsible for transmission of e-mail messages across the Internet. UDP. Telnet . SMTP FTP Question 60 A socket is a(n) ____. combination of an IP address and a service port number standard network cable connector node that connects two or more networks or network segments TCP connection with a unique integer number Question 61 At a minimum, all packets must contain: packet size, reassembling instructions, and data. a recipient's address, reassembling instructions, and data. a recipient's address, reassembling instructions, and packet size. packet type, packet size, and data. Question 62 Which of the following devices makes use of ARP tables? hub bridge router NIC Question 63 A socket allows two computers to establish what kind of circuit? virtual closed transitory application Question 64 Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119 and given the following scenario: The green status light of the network interface card is on. PING 127.0.0.1 does not successfully execute. The most likely cause of the problem is? The gateway IP is incorrect. The DNS server IP is incorrect. TCP/IP is not properly bound to the network interface. The router's routing table may be incorrect. None of the above. Question 65 To what type of network does the default subnet mask 255.255.255.0 belong? Class A Class B Class C Class D Question 66 In which of the following situations would an IP default gateway be necessary (assuming default subnet masks are in use)? A printer with an IP address of 159.45.22.144 receives a print job from a server with an IP address of 159.45.22.39. A client with an IP address of 144.92.104.82 sends an e-mail message to a client with an IP address of 144.92.39.82. A client with an IP address of 144.92.104.56 downloads a Web page from an HTTP server with an IP address of 10.12.10.13. A client with an IP address of 144.92.104.56 retrieves a file from a Windows 2000 server with an IP address of 144.92.104.20 Question 67 Each of the four parts of an IP address are referred to as a(n): octet. dotted decimal number. second-level domain. IP set. Question 68 Which protocol in the TCP/IP suite is responsible for addressing? UDP TCP ARP IP Question 69 Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119 and given the following scenario: The green status light of the network interface card is on. PING 127.0.0.1 does successfully execute. You can successfully ping 62.44.56.119, but you can not successfully ping the domain name of 62.44.56.119. The most likely cause of this problem is? The gateway IP is incorrect. The DNS server IP is incorrect. TCP/IP is not properly bound to the network interface. The router's routing table may be incorrect. None of the above. Question 70 The ________ protocol, part of the TCP/IP protocol suite, enables users to share files on their local computers with remote computers. SMTP FTP Telnet HTTP Question 71 Which of the following subprotocols allows TCP/IP to be routable? TCP IP UDP ICMP Question 72 The OSI model has 7 layers. How many layers does the TCP/IP architectural model have? 3 7 5 4 5 Question 73 Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119 and given the following scenario: The green status light of the network interface card is on. The PING 127.0.0.1 does successfully execute. You can successfully ping 62.44.56.119. You can successfully ping the domain name of 62.44.56.119, but your browser can not open up a web pages at 62.44.56.119. The most likely cause of this problem is? The gateway IP is incorrect. The DNS server IP is incorrect. The /etc/hosts file is incorrect. The router's routing table may be incorrect. None of the above. Question 74 On a Class A network in the IPv4 addressing scheme, all nodes have which octet(s) in common? the first only the first and second the second only the second and third Question 75 Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119 and given the following scenario: The green status light of the network interface card is on. PING 127.0.0.1 does successfully execute, but you cannot ping localhost. The most likely cause of this problem is? The gateway IP is incorrect. The DNS server IP is incorrect. The /etc/hosts file is incorrect. The router's routing table may be incorrect. None of the above. Question 76 In TCP/IP, the protocol that guarantees packet delivery is IP. True False Question 77 What is the single greatest disadvantage to using packet switching? It is expensive It is not highly scalable. Its standards are not stable. It is ill suited to time-sensitive transmissions. Question 78 What do network hosts do to improve the speed of ARP responses? hold ARP tables in cache keep ARP numbers in their TCP/IP configuration reassign MAC addresses if a response is not received quickly enough issue multiple broadcasts to ensure prompt responses Question 79 The difference between a connection-based protocol and a connectionless protocol is? A connection-based protocol requires that a host address be always provided, while a connectionless protocol does not. A connection-based protocol requires that all packets are delivered by the same route, while a connectionless protocol does not. A connection-based protocol guarantees all packets will be delivered to the destination, while a connectionless protocol does not. A connection-based protocol delivers messages between hosts, while a connectionless protocol delivers messages between users. Question 80 IPv6 is expected to provide all of the following improvements over traditional IP except: Dynamic configuration of routers New extensions allowing for data integrity checks and encryption An increase in address space from 4 numbers (32-bits) to 16 numbers (128-bits) A new type of address, called an anycast, which allows a frame to be directed to specific host computer groups rather than the traditional broadcast to all network hosts. More efficient routing of packets from source to destination host. Question 81 Which of the following protocols are connectionless? TCP IP UDP HTTP both b and c
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