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| 1 | |
In a client-server paradigm, a _______ program provides services to a (another) _______ program. |
| | A) | client; client |
| | B) | client; server |
| | C) | server; client |
| | D) | server; server |
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| 2 | |
In a client-server paradigm |
| | A) | both the server and the client must be running all the time. |
| | B) | both the server and the client need to be running only when they are needed. |
| | C) | the server must be running all the time but the client needs to be running only when it is needed. |
| | D) | the client must be running all the time but the server needs to be running only when it is needed |
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| 3 | |
The first section of a URL identifier is the __________. |
| | A) | protocol |
| | B) | path |
| | C) | host |
| | D) | port |
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| 4 | |
A _______ document is a fixed-content document that is created and stored in a server. The client can get a copy of the document only. |
| | A) | static |
| | B) | dynamic |
| | C) | active |
| | D) | None of the choices are correct |
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| 5 | |
_____________ is a language for creating a static document. |
| | A) | Extensible Style Language (XSL) |
| | B) | Hypertext Markup Language (HTML) |
| | C) | Extensible Markup Language (XML) |
| | D) | All choices are correct |
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| 6 | |
A _______ document is created by a Web server whenever a browser requests the document. |
| | A) | static |
| | B) | dynamic |
| | C) | active |
| | D) | None of the choices are correct |
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| 7 | |
For many applications, we need a program or a script to be run at the client site. These are called _______________ documents. |
| | A) | static |
| | B) | dynamic |
| | C) | active |
| | D) | None of the choices are correct |
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| 8 | |
HTTP uses the services of _________. |
| | A) | UDP |
| | B) | IP |
| | C) | TCP |
| | D) | DNS |
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| 9 | |
In HTTP, the first line in a request message is called a _______ line; the first line in the response message is called the ________ line. |
| | A) | request; response |
| | B) | status; response |
| | C) | status; status |
| | D) | None of the choices are correct |
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| 10 | |
In a ___________ connection, one TCP connection is made for each request/response. |
| | A) | persistent |
| | B) | nonpersistent |
| | C) | persistent or a nonpersistent |
| | D) | None of the choices are correct |
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| 11 | |
In a ___________ connection, the server leaves the connection open for more requests after sending a response. |
| | A) | persistent |
| | B) | nonpersistent |
| | C) | persistent or nonpersistent |
| | D) | None of the choices are correct |
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| 12 | |
In HTTP, _______ server is a computer that keeps copies of responses to recent requests. |
| | A) | a regular |
| | B) | a proxy |
| | C) | an auxiliary |
| | D) | a remote |
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| 13 | |
An HTTP request message always contains _______. |
| | A) | a header line and a body |
| | B) | a request line and a header line |
| | C) | a request line, a header line, and a body |
| | D) | a request line, a header line, a blank line, and a body |
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| 14 | |
Which of the following is present in both an HTTP request line and a status line? |
| | A) | version number |
| | B) | URL |
| | C) | status code |
| | D) | method |
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| 15 | |
FTP uses the services of ________. |
| | A) | UDP |
| | B) | IP |
| | C) | TCP |
| | D) | none of the choices are correct |
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| 16 | |
In FTP, _________ well-known port(s) is (are) used. |
| | A) | one |
| | B) | two |
| | C) | three |
| | D) | four |
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| 17 | |
During an FTP session the control connection is opened _______. |
| | A) | once |
| | B) | twice |
| | C) | many times |
| | D) | none of the choices are correct |
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| 18 | |
During an FTP session the data connection may be opened _______. |
| | A) | only once |
| | B) | only two times |
| | C) | as many times as needed |
| | D) | none of the choices are correct |
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| 19 | |
In FTP, a file can be organized into records, pages, or a stream of bytes. These are types of an attribute called _______. |
| | A) | file types |
| | B) | data structures |
| | C) | transmission modes |
| | D) | none of the choices are correct |
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| 20 | |
In FTP, there are three types of _______: stream, block, and compressed. |
| | A) | file types |
| | B) | data types |
| | C) | transmission modes |
| | D) | none of the choices are correct |
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| 21 | |
In FTP, ASCII, EBCDIC, and image define an attribute called _______. |
| | A) | file type |
| | B) | data structure |
| | C) | transmission mode |
| | D) | none of the choices are correct |
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| 22 | |
In FTP, when we _______, it is copied from the client to the server. |
| | A) | retrieve a file |
| | B) | store a file |
| | C) | open a file |
| | D) | none of the choices are correct |
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| 23 | |
In the common scenario, the electronic mail system needs _________________________. |
| | A) | two UAs, two MTAs and one MAA |
| | B) | two UAs, two MTAs and two MAAs |
| | C) | two UAs, two pairs of MTAs and a pair of MAAs |
| | D) | two UAs, two pairs of MTAs and a two pairs of MAAs |
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| 24 | |
________ provides service to the user to make the process of sending or receiving a message easier. |
| | A) | An MTA |
| | B) | An MAA |
| | C) | A UA |
| | D) | None of the choices are correct |
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| 25 | |
An e-mail message contains the ________ and the __________. |
| | A) | header; envelop |
| | B) | header; body |
| | C) | envelop; body |
| | D) | None of the choices are correct |
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| 26 | |
In the Internet, an e-mail address consists of two parts: a _______ and a _______. |
| | A) | local part; domain name |
| | B) | global part; domain name |
| | C) | label; domain name |
| | D) | local part; label |
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| 27 | |
_________ is a supplementary protocol that allows non-ASCII data to be sent through e-mail. |
| | A) | SMPT |
| | B) | MPEG |
| | C) | MIME |
| | D) | POP |
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| 28 | |
The formal protocol that defines the MTA client and server in the Internet is called ___________. |
| | A) | SMTP |
| | B) | SNMP |
| | C) | TELNET |
| | D) | SSH |
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| 29 | |
SMTP is a __________ protocol. |
| | A) | pull |
| | B) | push |
| | C) | push and pull |
| | D) | None of the choices are correct |
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| 30 | |
The message access protocol is a ________ protocol. |
| | A) | pull |
| | B) | push |
| | C) | push and pull |
| | D) | None of the choices are correct |
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| 31 | |
In the _______ encoding scheme, each 24 bits become four 6-bit chunks, and eventually are sent as 32 bits. |
| | A) | 8bit |
| | B) | binary |
| | C) | base64 |
| | D) | quoted-printable |
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| 32 | |
In the _______ encoding scheme, a non-ASCII character is sent as 3 characters. |
| | A) | 8bit |
| | B) | base64 |
| | C) | quoted-printable |
| | D) | binary |
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| 33 | |
TELNET is an abbreviation for ____________. |
| | A) | terminal network |
| | B) | telephone network |
| | C) | telecommunication network |
| | D) | None of the choices are correct |
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| 34 | |
When a user logs into a local time-sharing system, it is called ________ login. |
| | A) | local |
| | B) | remote |
| | C) | local or remote |
| | D) | None of the choices are correct |
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| 35 | |
When a user wants to access an application program or utility located on a remote machine, he or she performs ___________ login. |
| | A) | local |
| | B) | remote |
| | C) | local or remote |
| | D) | None of the choices are correct |
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| 36 | |
Network Virtual Terminal (NVT) uses two sets of characters, one for _____ and one for __________. |
| | A) | sending; receiving |
| | B) | request; reply |
| | C) | data; control |
| | D) | None of the choices are correct |
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| 37 | |
For data, NVT uses US ASCII characters with the highest order bit set to ______. |
| | A) | 1 |
| | B) | 0 |
| | C) | 1 or 0 |
| | D) | None of the choices are correct |
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| 38 | |
For control, NVT uses US ASCII characters with the highest order bit set to ______. |
| | A) | 1 |
| | B) | 0 |
| | C) | 1 or 0 |
| | D) | None of the choices are correct |
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| 39 | |
The _______ translates local characters into NVT characters. |
| | A) | terminal driver |
| | B) | TELNET client |
| | C) | TELNET server |
| | D) | pseudoterminal driver |
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| 40 | |
The _______ translates NVT characters into a form acceptable by the remote operating system. |
| | A) | terminal driver |
| | B) | TELNET client |
| | C) | TELNET server |
| | D) | pseudoterminal driver |
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| 41 | |
The _________ component in the SSH provides confidentiality, integrity, authentication and compression. |
| | A) | SSH Application |
| | B) | SSH-AUTH |
| | C) | SSH-CONN |
| | D) | SSH-TRAN |
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| 42 | |
Port forwarding is ____________________________. |
| | A) | a protocol used to forward messages from one port to another port |
| | B) | a procedure for changing an ephemeral port to a well-known port |
| | C) | a service, provided by SSH, that creates a secure channel for applications that do not have security services. |
| | D) | None of the choices are correct |
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| 43 | |
In a _______ name space, a name is a sequence of characters without structure. |
| | A) | linear |
| | B) | flat |
| | C) | hierarchical |
| | D) | organized |
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| 44 | |
In a _________ name space, each name is made of several parts. |
| | A) | linear |
| | B) | flat |
| | C) | hierarchical |
| | D) | organized |
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| 45 | |
In the DNS, the names are defined in ___________ structure. |
| | A) | a linear list |
| | B) | an inverted-tree |
| | C) | a three-dimensional |
| | D) | None of the choices are correct |
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| 46 | |
The root of the DNS tree is _______. |
| | A) | a string of 127 characters |
| | B) | a string of 63 characters |
| | C) | a string of 15 characters |
| | D) | an empty string |
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| 47 | |
In the domain name space, a full domain name is a sequence of labels separated by ________. |
| | A) | colons |
| | B) | semicolons |
| | C) | dots |
| | D) | commas |
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| 48 | |
In the domain name space, if a label is terminated by a null string, it is called a __________. |
| | A) | PQDN |
| | B) | CQDN |
| | C) | SQDN |
| | D) | None of the choices are correct |
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| 49 | |
In the domain name space, if a label is not terminated by a null string, it is called a __________. |
| | A) | FQDN |
| | B) | PQDN |
| | C) | SQDN |
| | D) | None of the choices are correct |
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| 50 | |
In the domain name space, a _________ is a subtree of the domain name space. |
| | A) | label |
| | B) | name |
| | C) | domain |
| | D) | None of the choices are correct |
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| 51 | |
In the domain name space, what a server is responsible for or has authority over is called a _________. |
| | A) | domain |
| | B) | label |
| | C) | zone |
| | D) | None of the choices are correct |
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| 52 | |
A _______ server is a computer whose zone system consists of the whole tree. |
| | A) | domain |
| | B) | zone |
| | C) | root |
| | D) | primary |
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| 53 | |
A ________ server is a computer that stores a file about the zone for which it has an authority. |
| | A) | primary |
| | B) | secondary |
| | C) | zone |
| | D) | root |
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| 54 | |
A ________ server is a computer that transfers the complete information about a zone from another server. |
| | A) | primary |
| | B) | secondary |
| | C) | zone |
| | D) | root |
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| 55 | |
In the Internet, the country domain section uses ___________ country abbreviations. |
| | A) | two-character |
| | B) | three-character |
| | C) | four-character |
| | D) | None of the choices are correct |
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| 56 | |
In __________ resolution, the resolver expects the server to supply the final answer. |
| | A) | iterative |
| | B) | recursive |
| | C) | straight |
| | D) | None of the choices are correct |
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| 57 | |
In __________ resolution, the server returns the IP address of the server that it thinks can resolve the query. |
| | A) | iterative |
| | B) | recursive |
| | C) | straight |
| | D) | None of the choices are correct |
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| 58 | |
DNS can use the services of ________. |
| | A) | UDP |
| | B) | TCP |
| | C) | either UDP or TCP |
| | D) | None of the choices are correct |
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| 59 | |
A registrar, a commercial entity accredited by ________ is responsible for adding new domains to DNS data base |
| | A) | NIC |
| | B) | ICANN |
| | C) | ISOC |
| | D) | IEFE |
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| 60 | |
In a centralized P2P network, the directory system uses the ________ paradigm; the storing and downloading of the files are done using __________ paradigm. |
| | A) | client-server; client-server |
| | B) | peer-to-peer; client-server |
| | C) | client-server; peer-to-peer |
| | D) | peer-to-peer; peer-to-peer |
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| 61 | |
Napster is an example of a ____________ peer-to-peer network |
| | A) | centralized |
| | B) | structured-decentralized |
| | C) | unstructured-decentralized |
| | D) | None of the choices are correct |
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| 62 | |
Gnutella is an example of a ____________ peer-to-peer network |
| | A) | centralized |
| | B) | structured-decentralized |
| | C) | unstructured-decentralized |
| | D) | None of the choices are correct |
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| 63 | |
BitTorrent is an example of a ____________ peer-to-peer network |
| | A) | centralized |
| | B) | structured-decentralized |
| | C) | unstructured-decentralized |
| | D) | None of the choices are correct |
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| 64 | |
In a structured-decentralized P2P network, ________________. |
| | A) | the directory system is kept in a center |
| | B) | a query to find a file must be flooded through the network |
| | C) | a pre-defined set of rules is used to link nodes so that a query can be effectively and efficiently resolved |
| | D) | None of the choices are correct |
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| 65 | |
In a DHT-based network, each peer |
| | A) | has a partial knowledge about the whole network. |
| | B) | has a complete knowledge about the whole network. |
| | C) | only has a knowledge about its successor. |
| | D) | None of the choices are correct |
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| 66 | |
The finger table is the routing table used in ______________. |
| | A) | Gnutella |
| | B) | Pastry |
| | C) | Kademlia |
| | D) | None of the choices are correct |
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| 67 | |
Which of the following is not a Chord interface. |
| | A) | Lookup |
| | B) | Fix node |
| | C) | Stabilize |
| | D) | Join |
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| 68 | |
In __________ a key is stored in a node whose identifier is numerically closest to the key. |
| | A) | Chord |
| | B) | Pastry |
| | C) | Kademlia |
| | D) | None of the choices are correct |
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| 69 | |
To resolve a query, _________ uses two entities: a routing table and a leaf set. |
| | A) | Chord |
| | B) | Pastry |
| | C) | Kademlia |
| | D) | None of the choices are correct |
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| 70 | |
In Kademlia, the distance between the two identifiers (nodes or keys) are measured as the bitwise-___________ between them. |
| | A) | AND |
| | B) | NOR |
| | C) | OR |
| | D) | None of the choices are correct |
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| 71 | |
In ________, nodes and data items are m-bit identifiers that create an identifier space of 2m points distributed at the leaves of a binary tree |
| | A) | Chord |
| | B) | Pastry |
| | C) | Kademlia |
| | D) | None of the choices are correct |
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| 72 | |
In Kademlia, each node in the network divides the binary tree into m subtrees that. |
| | A) | include the node itself |
| | B) | do not include the node itself |
| | C) | include the node itself and the successor node |
| | D) | None of the choices are correct |
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| 73 | |
Trackerless BitTorrent uses __________ DHT to do the job of tracking. |
| | A) | Chord |
| | B) | Pastry |
| | C) | Kademlia |
| | D) | None of the choices are correct |
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