发几道今天面的题# JobHunting - 待字闺中
g*e
1 楼
面的资深码工职位，遇到某bt俄罗斯老头，于是有了以下题目：
1. what is a Ring in algebraic structures
2. tell me about your understanding about Riemannian geometry
3. write down FFT definition. name a few implementations of FFT algorithms
4. how do you implement taylor expansion
5. what are eigenvalues and eigenvectors, how do you calculate them
6. how do you solve a system linear equations
其它常见IT题目就不说了，说几个不常见的
1. how do you extract information from an udp packet
2. given the following DB table:
symbol, timestamp, bid, ask
A, timestamp1, 1, 1.5
A, timestamp2, 1.5, 1.6
B, timestamp3, 3, 3.1
B, timestamp4, 3.1, 3.2
C, timestamp5, 2, 2.1
write a sql query such that for each symbol, output the row with its latest
timestamp.
3. how concurrent mark & sweep works in JVM GC. why the second pause is
usually longer than the first one.
4. how does JVM hotspot on-stack replacement work and why is this feature
usefule.
被数学搞的差点吐血，不过下午猎头打电话过来还是给了offer
1. what is a Ring in algebraic structures
2. tell me about your understanding about Riemannian geometry
3. write down FFT definition. name a few implementations of FFT algorithms
4. how do you implement taylor expansion
5. what are eigenvalues and eigenvectors, how do you calculate them
6. how do you solve a system linear equations
其它常见IT题目就不说了，说几个不常见的
1. how do you extract information from an udp packet
2. given the following DB table:
symbol, timestamp, bid, ask
A, timestamp1, 1, 1.5
A, timestamp2, 1.5, 1.6
B, timestamp3, 3, 3.1
B, timestamp4, 3.1, 3.2
C, timestamp5, 2, 2.1
write a sql query such that for each symbol, output the row with its latest
timestamp.
3. how concurrent mark & sweep works in JVM GC. why the second pause is
usually longer than the first one.
4. how does JVM hotspot on-stack replacement work and why is this feature
usefule.
被数学搞的差点吐血，不过下午猎头打电话过来还是给了offer
