PART 3.
APPLICATION LAYER
Question 1.89: FTP stands for:
A. File Transfer Protocol
B. Folder Transfer Protocol
C. Protocol Transfer Program
D. Protocol Transfer Folder
Question 1.90: HTTP stands for:
A. HyperText Transmision Protocol
B. HyperText Transit Protocol
C. HyperText Transfer Protocol
D. HyperText Treat Protocol
Question 1.91: The POP3 protocol uses service port number:
A. 53
B. 23
C. 25
D. 110
Question 1.92: The primary function of the DNS service is:
A. Resolving NetBIOS names
B. Resolving domain names (IP to name and vice versa)
C. Resolving MAC addresses
D. All are incorrect
Question 1.93: The disadvantage of building a centralized DNS service model is:
A. If the central point fails, the whole system will be down
B. The number of requests at the central point will be very high
C. The maintenance cost of the system is high
D. All the above answers
Question 1.94: The port number for the SMTP mail protocol is:
A. 23
B. 25
C. 21
D. 110
Question 1.95: The communication protocol in DNS uses service port number:
A. 21
B. 25
C. 53
D. 110
Question 1.96: Which of the following protocol and service port pairs is incorrect?
A. SMTP: TCP Port 25
B. FTP: UDP Port 22
C. HTTP: TCP Port 80
D. DNS: UDP Port 53
Question 1.97: Which protocol operates over UDP:
A. ARP
B. DNS
C. Telnet
D. All the above are correct
Question 1.98: Which statement is true regarding the HyperText Markup Language (HTML):
A. It is a World Wide Web procedure
B. It is a method of linking text files
C. It is a tool for composing Web pages
D. It is the Web interface
Question 1.99: Which statement is true about the type of server providing email services:
A. Web Server
B. Mail Server
C. FTP Server
D. Proxy
Question 1.100: The unit of data at the Application layer is:
A. Message
B. Segment/Datagram
C. Packet
D. Frame
Question 1.101: HTTP (Hypertext Transfer Protocol) is:
A. An application protocol that allows computers to communicate via the Web and link Web
pages
B. A transport layer protocol for transmitting Web pages
C. A domain name component
D. A Web interface
Question 1.102: Application protocols operate at:
A. Presentation Layer
B. Session Layer
C. Application Layer
D. Data Link Layer
Question 1.103: What does HTTP do:
A. Provides a mechanism to fetch data from a server to a client
B. Displays remote Web pages on the screen and allows interaction with them
C. Provides a user interface with buttons, sliders, etc.
D. Provides data from the server using the File Transfer Protocol
Question 1.104: On the Internet, email is sent from the source machine by establishing a TCP
connection to a specific port on the destination machine. That port is:
A. 80
B. 110
C. 25
D. 404
Question 1.105: Suppose a DNS record is (cnn.com, r1.infor.cnn.com, CNAME). Which
statement is true:
A. cnn.com is the shorthand for r1.infor.cnn.com
B. r1.infor.cnn.com is the shorthand for cnn.com
C. Both A and B are correct
D. Both A and B are incorrect
Question 1.106: The protocol used to transfer files between two parties is:
A. HTTP
B. FTP
C. SMTP
D. SNMP
Question 1.107: Suppose a DNS record is (alpha.com, 123.4.5.7, NS). Choose the correct
answer:
A. 123.4.5.7 is the IP address of the machine alpha.com
B. alpha.com is a domain name, not a machine
C. 123.4.5.7 is the IP address of the mail server machine with domain google.com
D. All answers are incorrect
Question 1.108: Suppose all the FPT Internet subscriber computers are redirected to a
different website when accessing google.com, while computers from other ISPs are not
affected. The main cause of this problem is:
A. The computers are infected with viruses
B. The google.com website is down
C. The FPT DNS server is down
D. The FPT ISP’s outgoing router is malfunctioning
Question 1.109: Web clients are typically referred to as:
A. Netscape Navigator
B. Browsers
C. Mosaic
D. HTML interpreter
Question 1.110: Web servers typically use software running on:
A. Port 25
B. Port 404
C. Port 125
D. Port 80
Question 1.111: To design a webpage as we see on the screen (fonts, colors, graphics, and
hyperlinks), a special formatting style is used. The standard page format used on the Web is:
A. HTTP
B. Mosaic
C. HTML
D. Netscape
Question 1.112: Which statement is true about the HTTP protocol:
A. The protocol version is always included in all messages
B. All headers are in text format
C. All data is transmitted as text
D. A and B
Question 1.113: In the HTTP response messages, which one is correct:
A. 200 "OK"
B. 201 "Moved Permanently"
C. 404 "Not Modified"
D. 20 "Not Implemented"
Question 1.114: Which of the following messages does the POP3 protocol support:
A. Authentication
B. Retrieving a message
C. Deleting a message
D. All the above are correct
Question 1.115: Which protocol belongs to the Application layer:
A. IP
B. HTTP
C. NFS
D. TCP
Question 1.116: Which of the following applications is a Client/Server model:
A. WinWord
B. WWW (World Wide Web)
C. Excel
D. Photoshop
Question 1.117: The HTTP response code 404 means:
A. The server does not understand the client's request
B. The client-requested resource is not found
C. None of the above answers are correct
D. The client’s request is invalid
Question 1.118: The protocol used to transfer mail between mail servers is:
A. HTTP
B. FTP
C. SMTP
D. POP
Question 1.119: Which application uses the client/server model:
A. BitTorrent
B. Email, Web
C. Skype
D. KaZaA
Question 1.120: Which application uses the P2P model:
A. Telnet
B. Email
C. Web
D. Skype
Question 1.121: Applications using TCP:
A. Web, file transfer, email
B. Web, DNS, Internet telephony
C. Video conferencing, Internet telephony, streaming media
D. Telnet, DNS, email
Question 1.122: Applications using UDP:
A. Web, file transfer, email
B. Web, DNS, Internet telephony
C. Video conferencing, Internet telephony, streaming media
D. Telnet, DNS, email
Question 1.123: The process identifier consists of:
A. Host IP address
B. Host IP address and port number linked to the process
C. Source IP address and destination IP address
D. Source IP address, source port, destination IP address, destination port
Question 1.124: Which one is a URL:
A. www.someschool.edu
B. 192.168.1.1
C. …/someDept/pic.gif
D. www.someschool.edu/someDept/pic.gif
Question 1.125: RTT (Round Trip Time) is:
A. The time to establish a TCP connection
B. The time to send a small packet from the client to the server
C. The time to send a small packet from the client to the server and back
D. The time to transfer a file
Question 1.126: In the DNS database, resource records (RR) are stored in the form:
A. (name, value, type, ttl)
B. (value, name, ttl, type)
C. (value, ttl, name, type)
D. (name, type, ttl, value)
