Application Layer

Which of the following statements is/are true with respect to the interaction of a web browser with a web server using HTTP 1.1?

A user starts browsing a webpage hosted at a remote server. The browser opens a single TCP connection to fetch the entire webpage from the server. The webpage consists of a top-level index page with multiple embedded ima...

Suppose in a web browser, you click on the www.gate-2023.in URL. The browser cache is empty. The IP address for this URL is not cached in your local host, so a DNS lookup is triggered (by the local DNS server deployed on...

Consider the resolution of the domain name www.gate.org.in by a DNS resolver. Assume that no resource records are cached anywhere across the DNS servers and that iterative query mechanism is used in the resolution. The n...

Assume that you have made a request for a web page through your web browser to a web server. Initially the browser cache is empty. Further, the browser is configured to send HTTP requests in non-persistent mode. The web...

Which of the following protocol pairs can be used to send and retrieve e-mails (in that order)?

Which of the following is/are example(s) of stateful application layer protocols? (i) HTTP (ii) FTP (iii) TCP (iv) POP3

Identify the correct sequence in which the following packets are transmitted on the network by a host when a browser requests a webpage from a remote server, assuming that the host has just been restarted.

In a web server, ten WebPages are stored with the URLs of the form http://www.yourname.com/$$var$$.html; where, $$var$$ is a different number from $$1$$ to $$10$$ for each Webpage. Suppose, the client stores the Webpage...

In one of the pairs of protocols given below, both the protocols can use multiple TCP connections between the same client and the server. Which one is that?

Which one of the following statements is NOT correct about $$HTTP$$ cookies?

Which of the following statements is/are FALSE? I. XML overcomes the limitations in HTML to support a structured way of organizing content. II. XML specification is not case sensitive while HTML specification is case sen...

A graphical HTML browser resident at a network client machine Q accesses a static HTML webpage from a HTTP server S. The static HTML page has exactly one static embedded image which is also at S. Assuming no caching, whi...

Which of the following transport layer protocols is used to support electronic mail?

Consider different activities related to email: m1: Send an email from a mail client to a mail server m2: Download an email from mailbox server to a mail client m3: Checking email in a web browser Which is the applicatio...

Which one of the following is not a client-server application?

Which one of the following uses UDP as the transport protocol?