Consider the following code executed by a single process on a Unix-like system: int fd1 = open(“file.txt”, O_RDONLY); // returns 3 int fd2 = open(“file.txt”, O_RDONLY); // returns 4 read(fd1, buf, 100); read(fd2, buf, 50); After both reads complete, what are the file offsets associated with fd1 and fd2?

A manager is reviewing two menu items:Steak Bowl: Contribution Margin = $10, Sold 80 timesChicken Wrap: Contribution Margin = $4, Sold 250 timesWhich item should the manager focus on to improve overall profitability, and why? (2–3 sentences)

What mechanism prevents retries from congesting a receiver?

In NFS, when the server crashes and recovers, it has to contact all clients and tell them to re-open their files.

A student submission runs a fork bomb (:(){ :|:& };:) inside a container, trying to spawn billions of processes. Which cgroup controller is most directly responsible for keeping the host alive?

What is the main disadvantage of fsck as a recovery strategy compared to journaling?

A file system uses 256-byte inodes and 4 KB disk blocks (so 16 inodes fit in each block of the inode table). Within the inode table, where does inode number 40 live?

File Systems (True/False)

The improved version of FFS tried to place directory data blocks near their corresponding inode.

What will be the output from Line 3?